COMMON DRUGS

TABLE 10-6 Common Drugs

Drug and Dosage Use Action Assessment:Side Effects

Adrenergics


Alpha and beta agonists

Epinephrine (Adrenalin)-SC or IM 0.1-1 mg in 1:1000 solution; IV-intracardiac 1:10,000 solution; ophthalmic 1:1000-1:50,000 solution


Asystole, bronchospasm anaphylaxis, glaucoma


Stimulates pacemaker cells; inhibits histamine and mediates bronchial relaxation; intraocular pressure decreased


Ventricular arrhythmias, fear, anxiety, anginal pain, decreased renal blood flow, burning of eyes, headache

Nursing implications: Use TB syringe for greater accuracy; massaging injection site hastens action; repeated injections may cause tissue necrosis; avoid injection in buttocks because bacteria in area may lead to gas gangrene; may make mucous plugs in lungs more difficult to dislodge.

Drug and Dosage Use Action Assessment:Side Effects

Norepinephrine (Levophed)-IV 8-12 p-g/minutes titrated to desired response


Acute hypotension, cardiogenic shock


Increases rate and strength of heartbeat; increases vasoconstriction


Palpitations, pallor, headache, hypertension, anxiety, insomnia, dilated pupils, nausea, vomiting, glycosuria, tissue sloughing

Nursing implications: Observe vital signs, mentation, skin temperature, and color (earlobes, lips, nailbeds); tissue necrosis occurs with infiltration; antidote is phentolamine 5-10 mg in 10-15 mL normal saline.

Drug and Dosage Use Action Assessment:Side Effects

Beta agonists

Dobutamine (Dobutrex)-IV Acute heart failure 1.5-10 µg/kg/minutes


Acute heart failure


Stimulates cardiac contractile force (positive inotropy); fewer changes in heart rate than dopamine or isoproterenol


Tachycardia, arrhythmias

Nursing implications: Mix with 5% dextrose; do not dilute until ready to use; protect from light; administer with infusion pump; check vital signs constantly; extravasation can produce tissue necrosis; see Norepinephrine.

Drug and Dosage Use Action Assessment:Side Effects

Dopamine (Inotropin)-IV 1-5 µg/kg/minutes titrated to desired response; gradually increase to 1-4 p-g/kg/minutes increments at 10-30 minutes intervals; must maintain at 20 µg/kg/minutes or less.


Acute heart failure


Cardiac contractility increased; Renal blood flow increased


Ectopic beats, nausea, vomiting, tachycardia, anginal pain, dyspnea, hypotension

Nursing implications: Monitor vital signs, urine output, and signs of peripheral ischemia; will cause tissue sloughing if infiltration occurs

Drug and Dosage Use Action Assessment:Side Effects

Isoproterenol (Isuprel)-10-15 mg sublingually; IV 0.5-5.0 µg/minutes in solution


Cardiogenic shock, heart block, bronchospasm asthma, emphysema


↑ Cardiac contractility; facilitates AV conduction and pacemaker automaticity


Tachyarrhythmias, hypo ten sion, headache, flushing of skin, nausea, tremor, dizziness

Nursing implications: Monitor vital signs, ECG; oral inhalation solutions must nor be injected.

Drug and Dosage Use Action Assessment:Side Effects

Analgesics


Acetaminophen (Tylenol, Datril, Panadol)-PO 325-650 mg q4h


Simple fever or pain


Analgesic and antipyretic actions; no anti-inflammatory or anticoagulant effects


No remarkable side effects when taken for a short period

Nursing implications: Consult with physician if no relief after 4 days of therapy

Drug and Dosage Use Action Assessment:Side Effects

Aspirin (acetylsalicylic acid)-PO or rectal 0.3-0.6 g


Minor aches and pains; fever from colds and influenza; rheumatoid arthritis; anticoagulant therapy


Selectively depresses subcortical levels of CNS


Erosive gastritis with bleeding, coryza, urticaria, nausea, vomiting, tinnitus, impaired hearing, and respiratory alkalosis

Nursing implications: Administer with food or after meals; observe for nasal, oral, or subcutaneous bleeding; push fluids; check Hct, Hgb, prothrombin times frequently; avoid use in children with flu.

Drug and Dosage Use Action Assessment:Side Effects

Butorphanol (Stadol)

IM: 1-2 mg

IV: 0.5-2 mg


Obstetric use: Control pain, especially during labor. Avoid in opioid-addicted patients.


30-40 times more potent than meperidine; onset: 2-15 minutes; duration: 0.5-2 hours


No excessive sedation. Neonatal respiratory depression less than with meperidine. Sinusoidal FHR pattern after administration.

Nursing implications: Care must be taken that drug is not given with meperidine, as it may potentiate effects of meperidine; avoid in opioid-addicted patients.

Drug and Dosage Use Action Assessment:Side Effects

Codeine-PO, IM, or SC 15-60 mg (gr ¼ to 1)


Control pain; may be used during the puerperium


Nonsynthetic narcotic analgesic


Of little use during labor; allergic response; constipation; GI upset

Nursing implications: Note response to the medication; less respiratory depression; preferred for head injury patient.

Drug and Dosage Use Action Assessment:Side Effects

Ecotrin (enteric-coated aspirin)


See Aspirin


See Aspirin


See Aspirin

Nursing implications: Note response to the medication; less respiratory depression; preferred for head injury patient.

Drug and Dosage Use Action Assessment:Side Effects

Eiodolac (Lodine)-PO

400-1200 mg/day, 300-400 q6-8h


Management of osteoarthritis; mild to moderate pain


Inhibits prostaglandin synthesis; suppression of inflammation and pain (NSAID)


Dyspepsia, asthma, drowsiness, rash, tinnitus, anaphylaxis

Nursing implications: Give 30 minutes before or 2 hours after meals for rapid effect; may be taken with food to decrease GI irritation.

Drug and Dosage Use Action Assessment:Side Effects

Fentanyl transdermal (Duragesic)-25-100 µg/hour


Chronic pain; not recommended for postoperative pain

Obstetric use: Short-acting pain control during labor.


Binds to opiate receptors in the CNS to alter response and perception of pain


Drowsiness, confusion, weakness, constipation, dry mouth, nausea, vomiting, anorexia, sweating

Nursing implications: Apply to upper torso, flat, nonirritated surface; when applying, hold firmly with palm of hand 10-20 sec.

Drug and Dosage Use Action Assessment:Side Effects

Hydrocodone/Acetaminophen (Vicodin)-PO 5-10 mg q4-6h


Moderate to severe pain


Bind to opiate receptors in Confusion, sedation, hypotenCNS; alter perception of and sion, constipation response to painful stimuli


Confusion, sedation, hypotension, constipation

Nursing implications: Assess: type, location, and intensity of pain before and 1 hour (peak) after giving; prolonged use may lead to physical and psychological dependence; give with food or milk to reduce GI irritation.

Drug and Dosage Use Action Assessment:Side Effects

Hydromorphone (Dilaudid)-PO 2-4 mg q3-6h; IM 1-2 mg q3-6h up to 2-4 mg q4-6h; IV 0.5-1.0 mg q3h


Moderate to severe pain; anti-tussive


Bind to opiate receptors in the CNS; alter perception and response to pain


Sedation, confusion, hypotension, constipation

Nursing implications: Give PO with food or milk; give IV 2 mg over 3-5 minutes; fluids, bulk, and laxatives to minimize constipation.

Drug and Dosage Use Action Assessment:Side Effects

Ibuprofen (Motrin)-300-800 mg oral 3-4/days not to exceed 3200 mg/day


Nonsteroid anti-inflammatory, antirheumatic used in chronic arthritis pain


Inhibition of prostaglandin synthesis or release


GI upset, leukopenia; sodium/water retention

Nursing implications: Give on empty stomach for best result; may mix with food if GI upset severe; teach caution when using other medications.

Drug and Dosage Use Action Assessment:Side Effects

Indomethacin (Indocin)-PO 25 mg 3-4/days; increase to max 200 mg daily in divided doses


Rheumatoid arthritis; bursitis; gouty arthritis


Antipyretic/anti-inflammatory action; inhibits prostaglandin biosynthesis


GI distress, bleeding; rash; headache; blood dyscrasias; corneal changes

Nursing implications: Monitor GI side effects; administer after meals for best effect or with food, milk, or antacids if GI symptoms severe.

Drug and Dosage Use Action Assessment:Side Effects

Ketorolac (toradol)-PO, IV 10 mg q4-6h; IM 30-60 mg initially, then 15-30 mg q6h; ophthalmic 1 gtt qid for 1 week


Short-term management of pain; ocular itching due to allergies (NSAID)


Inhibits prostaglandin synthesis producing peripherally mediated analgesia; antipyretic/ anti-inflammatory


Drowsiness, dizziness, dyspnea, prolonged bleeding time, dyspepsia

Nursing implications: May be given routinely or pm; advise dentist or MD before any procedure.

Drug and Dosage Use Action Assessment:Side Effects

Meperidine HCI (Demerol)-PO or IM 50-100 mg q3-4h


Pain due to trauma or surgery; allay apprehension before surgery


Acts on CNS to produce analgesia, sedation, euphoria, and respiratory depression


Palpitations, bradycardia, hypotension, nausea, vomitine, syncope, sweating, tremors, convulsions

Nursing implications: Check respiratory rate and depth before giving drug; give IM, because subcutaneous administration is painful and can cause local irritation.

Drug and Dosage Use Action Assessment:Side Effects


Obstetric use: maternal relaxation may either slow labor or speed up labor


Depresses CNS, maternal and fetal; allays apprehension; PO peak action-1-2 hours; IM peak action first hour


Maternal side effects same as above; also can depress fetus

Nursing implications: Monitor maternal vital signs, contractions, progress of labor, and response to drug; fetal heart rate; if delivery occurs during peak action, prepare to give narcotic antagonist to mother or neonate or both.

Drug and Dosage Use Action Assessment:Side Effects

Morphine SO₄-PO 10-30 mg (Roxanol, MS Contin); SC 8-15 mg; IV 4-10 mg; rectal 10-20 mg


Control pain and relieve fear, apprehension, restlessness, as in pulmonary edema


Depresses CNS reception of pain and ability to interpret stimuli; depresses respiratory center in medulla


Nausea, vomiting, flushing, confusion, urticaria, depressed rate and depth of respirations, decreased blood pressure

Nursing implications: Check rate and depth of respirations before administering drug; observe for gas pains and, smaller doses for aged; monitor vital signs; observe for postural hypotension.

Drug and Dosage Use Action Assessment:Side Effects


Obstetric use: preeclampsia, eclampsia; uterine dysfunction; pain relief


Increases cerebral blood flow; provides antihypertensive action; CNS depressant


Respiratory and circulatory depression in mother and neonate; may depress contractions

Nursing implications: Observe for level of sedation, respirations, arousability, and deep-tendon reflex; give narcotic antagonist as necessary; check I&O (urinary retention possible).

Drug and Dosage Use Action Assessment:Side Effects

Nalbuphine (Nubain) IV: 1 mg at 6-10 minutes intervals


Obstetric use: pain relief during labor. Avoid in opioid addicted patients.


Onset: 2-15 minutes; duration: 1-4 hours


Increased sedation and limited ceiling effect; ceiling effect for neonatal respiratory depression

Nursing implications: Less nausea and vomiting and sedation if given with PCA. Prophylactic nalbuphine seems unable to prevent pruritis.

Drug and Dosage Use Action Assessment:Side Effects

Naproxen (Naprosyn)-PO 250-500 mg bid


Mild to moderate pain; dysmenorrhea; rheumatoid arthritis; osteoarthritis (NSAID).


Inhibits prostaglandin synthesis; suppression of inflammation


Headache, drowsiness, dizziness, nausea, dyspepsia, constipation, bleeding

Nursing implications: Take with a full glass of waler; avoid exposure to sun.

Drug and Dosage Use Action Assessment:Side Effects

Oxycodone HO (Percodan, Tylox)-PO 3-20 mg; SC 5 mg


Postpartum use: control pain; may be used during puerperium; 5-6 times more potent than codeine


Less potent and addicting than morphine; for moderate pain-episiotomy and “afterpains”; peak action 1 hour


See Morphine SO₄

Nursing implications: Administer per order and observe for effect.

Drug and Dosage Use Action Assessment:Side Effects

Pentazocine (Talwin)-PO 50-100 mg; IM 30-60 mg q3-4h


Relief of moderate to severe


Narcotic antagonist, opioid antagonist properties, equivalent to codeine


Respiratory depression, nausea, vomiting, dizziness, lightheadedness, seizures

Nursing implications: Monitor respirations, BP; caution with patients with MI, head injuries, COPD.

Drug and Dosage Use Action Assessment:Side Effects

Antacids

Antiadrenal


Aminoglutethimide (Cytadren)-250 mg q6h


Cushing’s


Inhibits enzymatic conversion of cholesterol to pregnenolone, thus reducing synthesis of adrenal glucocorticoids/ mineralocorticoids


Cortical hypofunction, hypotension, hypothyroidism

Nursing implications: Monitor: vital signs, lab values, disease signs and symptoms; observe frequently during periods of stress.

Drug and Dosage Use Action Assessment:Side Effects

Antianemics


Ferrous sulfate (Feosol, Fer-inSoD-adults, PO 300 rng-1.2 g qd; children under 6 years, PO 75-225 mg qd; 6-12 years, PO 120-600 mg qd


Iron deficiency anemia; pro-phylactically during infancy, childhood, pregnancy


Corrects nutritional iron deliciency anemia


Nausea, vomiting, anorexia, constipation, diarrhea; yellow-brown discoloration of eyes, teeth

Nursing implications: To minimize GI distress, give with meals; do nor give with antacids or tea; liquid form should be taken throug straw to prevent staining of teeth; causes dark-green/black stool.

Drug and Dosage Use Action Assessment:Side Effects

Antianginals


Atenolol (Tenormin)-PO 50-150 mg daily; IV 5 mg initially, wait 10 minutes, then another 5 mg


Hypertension: angina; arrhythmias


Blocks (cardiac) beta adrenergic receptors


Fatigue, weakness, bradycardia, heart failure, pulmonary edema

Nursing implications: Give 1 mg/minutes IV; check vital signs; assess for signs of fluid overload.

Drug and Dosage Use Action Assessment:Side Effects

Isosorbide dinitrate (Isordil, Isorbid)-sublingual 2.5-10.0 mgq5-l0min for 3 doses; PO 5-10 mg initially, 10-40 mg q6h


Acute angina: long-term pro-Produces vasodilation, dephylaxis for angina; heart creases preload failure


Produces vasolidation, decreases preload


Headache, dizziness, hypotension, tachycardia

Nursing implications: Avoid eating, drinking, or smoking until sublingual tablets are dissolved; change positions slowly; aspirin or acetaminophen for headache.

Drug and Dosage Use Action Assessment:Side Effects

Nitroglycerin-sublingual 0.25-0.6 mg prn; transdermal (patch) 2.5-15.0 mg/day; topical 2-3 inches q8h; IV 10-20 µg/minutes


Angina pectoris; adjunctive treatment in Ml, heart failure, hypertension (IV form)


Directly relaxes smooth muscle, dilating blood vessels; lowers peripheral vascular resistance; increases blood flow


Faintness, throbbing headache, vomiting, flushing, hypotension, visual disturbances

Nursing implications: Instruct patient to sit or lie down when taking drug, to reduce hypotensive effect; onset 1-3 minutes; may take 1-3 doses at 5 min intervals to relieve pain; up to 10/days may be allowed; if headache occurs, tell patient to expel tab as soon as pain relief occurs; keep drug at bedside or on person; watch expiration dates-tabs lose potency with exposure to air and humidity; alcohol ingestion soon after taking may produce shocklike syndrome from drop in BP; smoking causes vasoconstricting effect; causes burning under tongue; may crush between teeth to increase absorption.

Drug and Dosage Use Action Assessment:Side Effects

Antiarrhythmics


Bretylium (Brelylol)-IV Ventricular fibrillation; ven0.5-10 mg/kg q6h; IM 5-10 tricular tachycardia mg/kg (max 250 mg in one site)


Ventricular fibrillation; ventricular tachycardia


Inhibits norepinephrine release from sympathetic nerve endings; increased fibrillation threshold


Worsening of arrhythmia; tachycardia and increased BP initially; nausea, vominity; hypotension later

Nursing implications: Monitor BP and cardiac status closely; rotate IM injection sites; no more than 5 mL/site.

Drug and Dosage Use Action Assessment:Side Effects

Antiarrhythmics

Diphenylhydantoin (Dilantin)-PO 100-200 mg 3-4 times daily; IV loading dose 10-15 mg/kg (not to exceed 50 mg/minutes), 50-100 mg over 5-10 minutes


Digitalis toxicity; ventricular ectopy


Depresses pacemaker activity in SA node and Purkinje tissue without slowing con-duction velocity


Severe pain if administered in small vein; ataxia, vertigo, small vein; ataxia, vertigo, nystagmus, seizures, confusion, skin eruptions, hypotension if administered too fast

Nursing implications: With IV use monitor vital signs; observe for CNS side effects; have 0, on hand; seizure precautions (padded side rails, nonmetal airway; suction, mouth gag); also see Anticonvulsants.

Drug and Dosage Use Action Assessment:Side Effects

Lidocaine HCI-IV 50-100 mg; bolus; 1.-4 mg/kg/minutes, IV drip


Ventricular taelovartlia; PVCs


Depresses myocardial response to abnormally generated impulses


Drowsiness, dizziness, nervousness, confusion. paresthesias

Nursing implications: Monitor vital signs; observe for signs of CNS toxicity; monitor ECG for prolonged PR interval.

Drug and Dosage Use Action Assessment:Side Effects

Procainamide HCI (PronestyI)-PO, IM 500-1000 mg 4-6 times qd: IV 1 g


Atrial and ventricular arrhythmias; PVCs; overdose of digitalis; general anesthesia


Depresses myocardium; lengthens conduction time between atria and ventricles


Polyarthralgia, fever, chills, urticaria, nausea, vomiting, urticaria, nausea, vomiting, psychoses, rapid decrease in BP

Nursing implications: Check pulse rate before giving; monitor heart action during IV administration.

Drug and Dosage Use Action Assessment:Side Effects

Propranolol HCI (Inderal)-0.5-3.0 mg IV push (up to 3 mg); 20-60 mg orally 3-4 times daily


Ventricular ectopy; angina unesponsive to nitrites, paroxysmal atrial tachycardia; hypertension


Beta-adrenergic blocker, cardiac contractility decreased. Heart rate decreased. Myocardial oxygen requirement decreased


Bradycardia, hypotension, vertigo, paresthesia of hands

Nursing implications: Instruct patient to take pulse before each dose; do not give to patients with history of asthma or chronic obstructive pulmonary disease; no smoking, because hypertension may occur.

Drug and Dosage Use Action Assessment:Side Effects

Quinidine SO₄-PO 0.2-0.6 g q2h loading dose: maintenance: 400-1000 mg tid-qid; IV 5-10 mg/kg over 30-60 minutes


Atrial fibrillation; PAT; ventricular tachycardia; PVCs


Lengthens conduction time in atria and ventricles; blocks vagal stimulation of heart


Nausea, vomiting, diarrhea, vertigo, tremor, headache, abdominal cramps, AV block, cardiac arrest

Nursing implications: Count pulse before giving; report changes in rate, quality, or rhythm; give drug with food; monitor BP daily.

Drug and Dosage Use Action Assessment:Side Effects

Antiasthmatics


Cromolyn sodium-inhale, 1 cap 4 times qd


Perennial bronchial asthma (not acute asthma or status asthmaticus)


Inhibits release of bronchocon, strictors-histamine and SRS-A; suppresses allergic response


Cough. hoarseness. wheezing, dry mouth, bitter aftertaste, urticaria, urinary frequency

Nursing implications: Instruct on use of inhaler-exhale; tilt head back; inhale rapidly, deeply, steadily; remove inhaler; exhale-repeat until dose is taken; gargle or drink water after treatment.

Drug and Dosage Use Action Assessment:Side Effects

Anticholelithics


Ursodeoxycholic (Actigal)


Gallstones


Dissolves gallstones


Diarrhea, avoid concurrent use with bile acid sequestrants with bile acid sequestrants

Nursing implications: Monitor for pain, GI distress.

Drug and Dosage Use Action Assessment:Side Effects

Anticholinergics (antimuscarinis)


Anticholinergics (antimuscarinis)

Atropine, SO₄-0.3-1.2 mg PO, SC, IM, or IV; ophthalmic 0.5-1.0% up to 6 times qd


Peptic ulcer; spasms of GI tract. Stokes-Adams syndrome; control excessive secretions during surgery


Blocks parasympathomimetic effects of acetylcholine on effector organs


Dry mouth, tachycardia, blurred vision, drowsiness, skin Bushing, urinary retention; contraindications: glaucoma and paralytic ileus

Nursing implications: Observe for postural hypotension in ambulating patients; administer cautiously in aged; and monitor vital signs for pulse and respiratory rate changes.

Drug and Dosage Use Action Assessment:Side Effects

mg 3-4 x day


Diverticulosis


Antispasmodic


Blurred vision, constipation. dry eyes, dry mouth

Nursing implications: Report symptoms listed under side effects, abdominal pain.

Drug and Dosage Use Action Assessment:Side Effects

1-2 mg bid/tid; IM, IV 4.4 mcg/kg (preop); 100-200 mcg qid (ulcer)


Inhibit salivation and respiratory secretions; peptic ulcer disease


Inhibits action of acetylcholine (antimuscarinic action)


Tachycardia, dry mouth, urinary hesitancy

Nursing implications: Give 30.60 minutes. before meals; do not give within 1 hour of antacids; IM or IV may be given undiluted.

Drug and Dosage Use Action Assessment:Side Effects

0.125-0.5 mg 3-4 x day; or 0.375 mg twice a day in released tablets


Diverticulosis


Manages spasms of irritable bowel syndrome


Constipation, dry mouth, blurred vision

Nursing implications: Monitor for: pain, bleeding, constipation, drug reaction.

Drug and Dosage Use Action Assessment:Side Effects

(Banthine)-P0 15 mg qid; IM or IV 30 mg


Decreases hypertonicity and hypersecretion of GI tract; ulcerative colitis; peptic ulcer


Blocks neural transmission at ganglia of autonomic nervous system and at parasympathetic effector organs


Nausea, gastric fullness, constipation, mydriasis

Nursing implications: Give before meals; observe urinary output to avoid retention, particularly in elderly; mouth care to relieve dryness; contraindicated with glaucoma.

Drug and Dosage Use Action Assessment:Side Effects

0.3-0.6 mL tid


bowel, biliary, and renal colic; prostatitis


Blocks parasympathomimetic effects of acetylcholine


Dry mouth, thirst, dilated pupils, skin flushing, elevated temperature, delirium

Nursing implications:Administer 30-60 minutes before meals; observe for side effects; physostigmine salicylate is antidote.

Drug and Dosage Use Action Assessment:Side Effects

Anticoagulants


Enoxaparin (Lovenox)-30-40mg bid SC, 7-10 days; or 1 mg/kg q12h


Deep vein thrombosis; prophylaxis before knee and abdominal surgery


Potentiates inhibitory effect of antithrombin


Bleeding, anemia, thromhocytopenia

Nursing implications: Observe injection sites for: hematomas, ecchymosis, or inflammation; ice cube massage at site prior to injection may lessen bruising.

Drug and Dosage Use Action Assessment:Side Effects

Heparin-initial dose: IV 5,000-20,000-40,000 U followed by infusion over 24 hours


Acute thromboembolic emergencies


Prevents thrombin formation


Hematuria, bleeding gums, ecchymosis

Nursing implications: Observe clotting times-should be 20-30 minutes; antagonist is protamine sulfate.

Drug and Dosage Use Action Assessment:Side Effects

Warfarin sodium (Coumadin)-initial dose: PO 10-15 mg; maintenance dose: PO 2-10 mg qd


Venous thrombosis atrial fibrillation with embolixation; pulmonary emboli; myocardial infarction


Depresses liver synthesis of prothromhin and factors VII, IX, and X


Minor or major hemorrhage, alopecia, fever, nausea, diarrhea, dermatitis

Nursing implications: Drug effects last 3-4 days; antagonist is vitamin K; avoid foods high in vitamin K; no aspirin.

Drug and Dosage Use Action Assessment:Side Effects

Anticoagulant Antidotes


Protamine sulfate 1%-IV 10 mg/mL slowly; 1 mg/100 U heparin


Overdose of heparin


Positive electrostatic charge inactivates negatively charged heparin molecules


Excessive coagulation; hypotension, bradycardia, dyspnea

Nursing implications: Slow IV; no more than 50 mg in 10 minutes period; monitor VS continuously; check APTT for effectivenesss.

Drug and Dosage Use Action Assessment:Side Effects

(Konakion)-PO, IM, SC 2.5-25.0 mg; 0.5-1.0 mg in newborns


Warfarin (Coumadin) hypoprothrombinemia; hemorrhagic disease in newborns


Counteracts the inhibitory effects of oral anticoagulants on hepatic synthesis of vitamin K-dependent clotting factors


Flushing, hypotension, allergic reactions; reappearance of clotting problems (high doses)

Nursing implications: Give IV only if absolutely necessary; dilute with preservative-free 0.9% NaCI, D₅W, or D₅NaCI; protect solution from light; repeat injection may cause redness and pain; check PT for drug effect.

Drug and Dosage Use Action Assessment:Side Effects

Anticonvulsants


Carbamazepine (Tegretol) 200 mg twice/day (range: 600-1200/day in divided doses)


Multiple sclerosis


Decreases synaptic transmis-sion in CNS by affecting sodium channels in neurons


Contraindicated in hypersensitivity, bone marrow depres. sion; drowsiness, ataxia, agranulocytosis, aplastic anemia

Nursing implications: Monitor: CBC, liver function, ECG. Therapeutic levels should be 6-12 mcg/mL; take medication as directed around the clock; use sunscreen due to photosensitivity.

Drug and Dosage Use Action Assessment:Side Effects

Clonazepam (Klonopin)-PO 1.5 mg in 3 doses initially, 0.5-1.0 mg every third day


Absence seizures (petit mal seizures, myoclonic seizures)


Produces anticonvulsant and sedative effects in the CNS, mechanism unknown


Drowsiness, ataxia, behavioral changes

Nursing implications: Give with food; evaluate liver enzymes, CBC, and platelets; avoid abrupt withdrawal-may cause status epilepticus.

Drug and Dosage Use Action Assessment:Side Effects

Diazepam (Valium)-PO 2-10 mg bid-qid; IM or IVE 5-10 mg


All types of seizures


Induces calming effect on limbic system, thalamus, and hypothalamus


Drowsiness, ataxia, paradoxical increase in CNS excitability

Nursing implications: IV may cause phlebitis; give IV injection slowly, because respiratory arrest can occur; inject IM deeply into tissue.

Drug and Dosage Use Action Assessment:Side Effects

500 mg/day, increase by 250 mg/day until effective


Absence seizures


Depresses motor cortex and reduces CNS sensitivity to convulsive nerve stimuli


GI distress: nausea, vomiting, cramps, diarrhea, anorexia; blood dyscrasias

Nursing implications: Administer with meals; regular CBC precautions to avoid injury from drowsiness.

Drug and Dosage Use Action Assessment:Side Effects

Magnesium salts 4-5 g by IV infusion


cirrhosis


Osmotically active in GI tract


Use caution in renal failure: contraindicated in: hypermagnesemia, anuria, heart block

Nursing implications: Monitor vital signs, seizure precautions, I&O; respiratory rate must be 16 before administration.

Drug and Dosage Use Action Assessment:Side Effects

Magnesium Sulfate-PO 1-3 g/IM or IVE 1-4 g loaing dose.followede bye continuous infusion


Control seizures in pregnancy, epilepsy; relief of acute constipation; reduces edema, inflammation, and itching of skin; may inhibit preterm contractions


Depresses CNS and smooth, cardiac, and skeletal muscle; promotes osmotic retention of fluid


Flushing, sweating. extreme thirst, complete heart block. dehydration, depressed or absent reflexes, ↓ respirations

Nursing implications: If given IV, monitor vital signs continuously; I&O; use with caution in patients with impaired renal function; observe mother and newborn for signs of toxicity if given near birth; antidote: calcium gluconate.

Drug and Dosage Use Action Assessment:Side Effects

Phenytoin or diphenylhydantoin (Dilantin) SO₄-PO 30-100 mg 3-4 times qd; IV 150-250 mg


Psychomotor epilepsy, convulsive seizures; ventricular arrhythmias


Depresses motor cortex by preventing spread of abnormal electrical impulses


Nervousness, ataxia, gastric distress, nystagmus, slurred tress, nystagmus, slurred speech, hallucinations, gingival hyperplasia

Nursing implications: Give with meals or pc; frequent and diligent mouth care; advise patient that urine may turn pink to red-brown; midi patient signs of adverse reactions: mix IV with normal saline (precipitates with D₅W) Continued.

Drug and Dosage Use Action Assessment:Side Effects

Primidone (Mysoline)-PO 100-250 mg, increase over 10 days not to exceed 2 g/day


Tonic-clonic,focal, or local seizures


Inhibits abnormal brain electrical activity; dose-dependent CNS depression


Excessive sedation or ataxia, vertigo

Nursing implications: Careful neurological, cardiovacular, respiratory assessment; have resuscitation equipment available.

Drug and Dosage Use Action Assessment:Side Effects

Valproic acid (depakene)-PO 15 mg/kg/day, increase up to 60 mg/kg/day


Absense, tonic-clonic, myoclonic, focal, or local seizures


Inhibits spread of abnormal discharges through brain


Nausea, vomiting, diarrhea (disappear over time); drowsiness or sedation if taken in combination with other anticonvulsants

Nursing implications: Assess responses; monitor blood levels; precautions against excessive sedation; discourage alcohol use.

Drug and Dosage Use Action Assessment:Side Effects

Antidiarrheals


Antidiarrheals

Diphenoxylate HCI with atroptne sulfate (Lomotil)-PO 5-10 mg tid-qid


Diarrhea


Increases intestinal tone and decreases propulsive peristalsis


Rash, drowsiness, dizziness, depression, abdominal distention, headache, blurred vision, nausea

Nursing implications: May potentiate action of barbiturates, opiates, and other depressants; closely observe patients receiving these drugs, and administer narcotic antagonists such as levallorphan tartrate (Lorfan), naloxone HCI (Narcan), and nalorphine HCI (Naline) as ordered; administer cautiously to patients with hepatic dysfunction-may precipitate hepatic coma.

Drug and Dosage Use Action Assessment:Side Effects

Kaolin with pectin (Kaopectate)-adults, PO 60-120 mL after each bowel movement (BM); children over 12, PO 60 mL; 6-12 years, PO 30-60 mL; 3-6 years, PO 15-30 mL after each BM


Diarrhea


Reported to absorb irritants and soothe


Granuloma of the stomach

Nursing implications: Do not administer for more than 2 days, in presence of fever, or to children younger than 3 years.

Drug and Dosage Use Action Assessment:Side Effects

Paregoric or camphorated opium tincture-5-10 mL q2h, not more than qid


Diarrhea


Acts directly on intestinal smooth muscle to increase tone and decrease propulsive peristalsis


Occasional nausea; prolonged use may produce dependence

Nursing implications: Contains approximately 1.6 mg morphine or 16 mg opium and is subject to federal narcotic regulations; admin-ister with partial glass of water to facilitate passage into stomach; observe number and consistency of stools-discontinue drug as soon as diarrhea is controlled; keep in tight light-resistant bottles.

Drug and Dosage Use Action Assessment:Side Effects

Antiemetics


Antiemetics

Chlorpromazine (Thorazine-preop IM 12.5-25.0 g 1-2 hours before; IV 25-50 mg; PO 10-25 mg q4-6h; IM 25-50 mg q3-4h; suppository 50-100 mg q6-8h


Nausea, vomiting, hiccup, preoperative sedation, psychoses


Alters the effects of dopamine in the CNS; anticholinergic, alpha-adrenergic blocking


Sedation, extrapyramidal reactions, dry eyes, blurred vision, hypotension, constipation, dry mouth, photosensitivity

Nursing implications: Keep flat 30 minutes after IM; change positions slowly; frequent mouth care; may turn urine pink to red-brown.

Drug and Dosage Use Action Assessment:Side Effects

Prochlorperazine dimaleate (Compazine)-5-30 mg qid PO, IM, rectal


Nausea, vomiting, and retching


See Trimethobenzamide HCI


Drowsiness, orthostatic hypotension, palpitations, blurred vision, diplopia, headache

Nursing implications: Use cautiously in children, pregnant women, and patients with liver disease.

Drug and Dosage Use Action Assessment:Side Effects

Antiemetics

Trimethobenzamide HCI (Tigan)-250 mg qid, PO, IM, rectal


Nausea: vomiting


Suppresses chemoreceptors in the trigger zone located in the medulla oblongata


Drowsiness, vertigo; diarrhea, headache, hypotension; jaundice; blurred vision; rigid muscles

Nursing implications: Give deep IM to prevent escape of solution; can cause edema, pain, and burning.

Drug and Dosage Use Action Assessment:Side Effects

Antifungal


Amphotericin B (Fungi-zone)-IV 5 mg/250 mL dextrose over 4-6 hours (to 1 mg/kg body weight)


Severe fungal infections; histoplasmosis


Fungistatic or fungicidal; binds to sterols in fungal cell membrane, altering cell permeability


Febrile reactions; chills. nausea; vomiting; muscle/joint pain; renal damage; hypotension, tachycardia, arrhythmias; hypokalemia

Nursing implications: Monitor for side effects; thrombophlebitis at IV site; BUN > 40; creatinine > 3; stop drug because of nephrotoxicity.

Drug and Dosage Use Action Assessment:Side Effects

Ketoconazole (Nizoral)-oral 200-400 mg


Histoplasmosis, systemic fungal infections


Antifungal


Headache, faitgue, dizziness; nausea, vomiting; decreased libido, impotence; gynecomastia, especially in men

Nursing implications: Administer with food; avoid concomitant use of antacids, H₂ blockers; advise to report side effects .

Drug and Dosage Use Action Assessment:Side Effects

Nystatin (Nilstat, Myco-Nystatin)-PO, rectal, vaginal: 100,000-1,000,000 U 3-4 times qd


Skin, mucous membrane infections (candila albicans); oral thrush, vaginits; intestinal candidiasis


Fungaistatic and fungicidal; binds to sterols in fungal cell membrane


Nausea, vomiting, GI distress diarrhea

Nursing implications: Oral use-clear mouth of food; keep medication in mouth several minutes before swallowing; vaginal-usually requires 2 week therapy; continue use during menses; consult physician before using anti-infective douches: determine predisposing factors to infection (diabetes, pregnancy, antibiotics, tight-fitting nylon pantyhose).

Drug and Dosage Use Action Assessment:Side Effects

Antigout


Antigout Allopurinol (Lopurin,Zyloprim)-P0 100 mg initially, 300 mg daily with meals


Primary hyperuricemia, secondary hyperuricemia with cancer therapy


Lowers plasma and urinary uric acid levels; no analgesic, anti-infammatory. or uricosuric actions


Rash, itching; nausea, vomiting; anemia; drowsiness

Nursing implications: Report side effects, particularly rash, because drug must be stopped; avoid driving or other complex tasks until drug effects known; give at least 3,000 mL fluid daily; minimum urine output of 2,000 mL/day; keep urine neutral or alkaline with sodium bicarbonate or potassium citrate; use cautiously with: liver disease, impaired renal function. history of peptic ulcers, lower GI disease, or bone marrow depression.

Drug and Dosage Use Action Assessment:Side Effects

Colchicine-PO 1.0-1.2 mg acute phase; 0.5-2.0 mg nightly with milk or food; IV 1-2 mg initially


Gouty arthritis, acute gout


Inhibits leukocyte migration and phagocytosis in gouty joints; nonanalgesic, nonucricosuric


Nausea, vomiting, diarrhea, abdominal pain, peripheral neuritis, bone marrow despression (sore throat, bleeding gums, sore mouth), tissue and nerve necrosis with IV use

Nursing implications: Do not dilute IV form with normal saline or 5% dextrose-use sterile water to prevent precipitation; infuse over 3-5 minutes IV; potentiate drug action with alkaline ash foods (milk, most fruits and vegetables).

Drug and Dosage Use Action Assessment:Side Effects

Probenecid (Benemid)-PO 0.25-0.50 g twice daily pc


Chronic gouty arthritis, no value in acute, adjuvant therapy with penicillin to increase plasma level. Relief of allergic symptoms


Inhibits renal tubular resorption of uric acid; no analgesic or anti-inflammatory activity; competitively inhibits renal tubular secretion of penicillin and many weak organic acids


Headache, nausea, vomiting. anorexia, sore gums, urinary frequency, flushing

Nursing implications: Give with food, milk, or prescribed antacid; 3,000 mL/day fluids; avoid alcohol, which increases serum urates; do not take with aspirin-inhibits action of drug; renal function and hematology should be evaluated frequently; during acute gout, give with colchicine.

Drug and Dosage Use Action Assessment:Side Effects

Antihistamines


Astemizole (Hismanal)-PO 10 mg/day


(rhinitis, urticaria); less sedating


Block the effecrts of histamine


Drowsiness, headache, fatigue, stimulation, dry mouth, rash, incread appetite (none of these are frequent)

Nursing implications: Take 1 hour before or 2 hours after eating; good oral hygiene; may need to reduce calories.

Drug and Dosage Use Action Assessment:Side Effects

Chlorpheniramine maleate (Chlor-Trimeton)-PO 2-4 mg tid-qid; SC, IM, or IV 10-20 mg


Asthma; hay fever; serum reactions; anaphylaxis


Inhibits action of histamine


Nausea, gastritis, diarrhea, headache, dryness of mouth and nose, nervousness, irritability

Nursing implications: IV may drop BP; five slowly; caution patient about drowsiness.

Drug and Dosage Use Action Assessment:Side Effects

Diphenhydramine HCI (Benadryl)-PO 25-50 mg tid-qid; IM or IV 10-20 mg


Allergic and pyrogenic reactions; motion sickness; radiation sickness; hay feverl Parkinson's disease


Inhibits action of histamine on receptor cells; decreases action of acetylcholine


Sedation, dizziness, inability to concentrate, headache, anorexia, dermatitis, nausea, diplopia, insomnia

Nursing implications: Avoid use in newborn or preterm infants and patients with glaucoma; supervise abulationl caution against driving or operating mechanical devices; excitation or hallucinations may occur in children.

Drug and Dosage Use Action Assessment:Side Effects

Nedocromil (Tilade) inhalation, 2 sprays


Asthma


Prevents the release of histamine frome sensitized mastcells


Hypersensitivity, acute asthma attacks; does not relieve (may accelerate) bronchospasm

Nursing implications: Monitor pulmonary function; use only as prescribed; if symptoms increase, notify health care professional; teach proper use of metered-dose inhaler.

Drug and Dosage Use Action Assessment:Side Effects

Terfenadine (Seldane)-PO 60 mg 2 times daily


Relief of allergic symptoms, nasal and dermatoses


Blocks the effects of histamine


Drowsiness, sedation, headache, nausea, adbdominal pain, dry mouth

Nursing implications: Risk of arrhythmias if taking certain antibiotics; false-negative skin test reactions; take with food or milk.

Drug and Dosage Use Action Assessment:Side Effects

Antihyperglycemics


Aplha-glucosidase inhibitor

Acarbose (Precose) 25 mg 3 x day; may be increased q4-8 weeks (range; 50-100 mg 3 X day)


Diabete


Alpha-glucosidase inhibitors/ oral hypoglycemic


Overdose signs: flatulence, diarrhea, abdominal discomfort

Nursing implications: Observe for side effects of hypoglycemia; take same time each day; do not double dose; therapy is long term.

Drug and Dosage Use Action Assessment:Side Effects

Biguanide

Metformin (Glucophage) 500 mg 2 x day; may increase by 500 mg to 2,000 mg/day


Diabetes


Decreases hepatic prodiction of glucose; decreases intestinal absoption of glucose


Lactic acidosis; nausea, vomiting, diarrhea, abdominal bloating

Nursing implications: Monitor glucose levels; take medication as directed; dietary compliance; metallic taste resolves spontaneously.

Drug and Dosage Use Action Assessment:Side Effects

Sulfonylureas

Acelohexamide (Dymelor)-PO 200-1,500 mg qd; 1-2/days; duration 12-24 hours


Oral hypoglycemic; antidiabetic


Lowers blood glucose by stimulating insulin release from beta cells; effective only of pancreas has ability to produce insulin


Hypoglycemia(profuse sweating, hunger, headache, nausea, confusion, ataxia, coma), skins rashes, bone marrow depression, liver toxicity

Nursing implications: Drug therapy must be combined with diet therapy, weight control, and planned, graded exercise; alcohol intolerance may occur (disulfiram reaction-flushing, pounding headache, sweating, nausea, vomiting); should not be taken at bedtime unless specifically ordered (nocturnal hypoglycemia more likely); take at same time each day; contraindicated in liver disease, renal disease, pregnancy.

Drug and Dosage Use Action Assessment:Side Effects

Antilhyperglycemica

Chlorpropamide (Diabinese)-PO 100-500 mg maintenance; not to exceed 750 mg/day; duration 30-60 hours


See Acetohexamide


See Acetohexamide


See Acetohexamide

Nursing implications:See Acetohexamide.

Drug and Dosage Use Action Assessment:Side Effects

Glimepiride (Amaryl), glipizide (Glucotrol); 1-2 mg once daily; increase slowly up to 8 mg in one dose; 15 mg/day in divided dose


Diabetes mellitus, adult onset


Stimulate release of insulin from pancreas


Photosensivitity, hypoglycemia; ingestion of alcohol may induce reaction

Nursing implications: Observe for signs of hypoglycemia: long-term therapy; avoid aspirin, alcohol; follow prescribed diet/exercise program.

Drug and Dosage Use Action Assessment:Side Effects

Glyburide (Micronase)-PO 2.5-5 mg initially; 1.25-20 mg/day


See Acetohexamide


See Acetohexamide


See Acetohexamide

Nursing implications:See Acetohexamide.

Drug and Dosage Use Action Assessment:Side Effects

Tolazamide (Tolinase)-PO 100-500 mg; 1/day; duration 10-14 hours


See Acetohexamide


See Acetohexamide


See Acetohexamide

Nursing implications:See Acetohexamide.

Drug and Dosage Use Action Assessment:Side Effects

Tolbutamide (Orinase)-PO 500-3000 mg; 2-3/days; duration 6-12 hours


See Acetohexamide


See Acetohexamide


See Acetohexamide

Nursing implications:See Acetohexamide.

Drug and Dosage Use Action Assessment:Side Effects

Insulin-rapid acting

Crystalline zinc (Regular) (Humulin R) (clear)-onset 0.5-1.0 hour; peak 2-4 hours; duration 6-8 hours


Poorly controlled diabetes; trauma; surgery, coma


Enhances trasmembrane passage of glucose into cells; promotes carbohydrate, fat, and protein metabolism


Hypoglycemia (profuse sweating, nausea, hunger, headache, confusion, ataxia, coma) allergic reaction at injection site

Nursing implications: Monitor blood and urine for glucose and acetone levels; insulin currently being used can be kept at room temperature for 1 mo; refrigerate stock insulin only; rotate injection sites; cold insulin leads to lipodystrophy, reduced absorption, and local reaction; only form of insulin that is given IV reaction; only form of insulin that is given IV.

Drug and Dosage Use Action Assessment:Side Effects

Prompt insulin zinc suspension (Semilente) purified pork (cloudy)-onset 1-2 hours; peak 4-10 hourshr; duration 12-16 hours


Patients allergic to Regular; used in combination with longer-lasting insulin


See Crystalline zinc (Regular)


See Crystalline zinc (Regular)

Nursing implications: See Crystalline zinc (Regular); compatible with all Lente preparations.

Drug and Dosage Use Action Assessment:Side Effects

Insulin-intermediate acting NPH insulin (isophane insulin suspension) purified pork (Humulin N⁺) (cloudy)-onset 1-2 hours; peak 5-12 hours; duration 18-24 hours


Patients who can be controlled by one dose per day


See Crystalline zinc (Regular)


See Crystalline zinc (Regular)

Nursing implications:Gently rotate vial between palms, invert several times to mix; do not shake; see Crystalline zinc (Regular).

Drug and Dosage Use Action Assessment:Side Effects

Antihyperglycemics

Insulin zinc suspension (Lente insulin) (cloudy)-onset 1-3 hours; peak 6-12 hours; duration 18-24 hours


Patients allergic to NPH


See Crystalline zinc (Regular)


See Crystalline zinc (Regular)

Nursing implications: See Crystalline zinc (Regular).

Drug and Dosage Use Action Assessment:Side Effects

Insulin-slow acting

Extended insulin zinc suspension (Ultralente, Humulin U) purified beef (cloudy)-onset 4-8 hours; peak 12-24 hours;


Often mixed with Semilente for 24 hours curve


See Crystalline zinc (Regular)


See Crystalline zinc (Regular)

Nursing implications: See Crystalline zinc (Regular).

Drug and Dosage Use Action Assessment:Side Effects

Antihypertensives


Captopril (Capoten)-PO 50 mg tid


Hypertension, heart failure


Prevents production of angiotensin II; vasodilation


Hypotension, loss of taste perception, proteinuria, rashes

Nursing implications: Monitor VS and weight; take 1 hour before and 2 hours after meals; change positions slowly; avoid salt and salt substitutes.

Drug and Dosage Use Action Assessment:Side Effects

Clonidine (Catapres)-PO 200-600 mcg/day; transdermal 100-300 mcg applied every 7 days


Mild to moderate hypertension; also used for epidural pain management


Stimulates alpha-adrenergic receptors in CNS


Drowsiness; dry mouth; postural hypotension

Nursing implications: Instruct patient to take same time each day; avoid sudden position changes; report: mental depression, swelling of feet, paleness or cold feeling in fingertips or toes, vivid dreams or nightmares.

Drug and Dosage Use Action Assessment:Side Effects

Guanadrel (Hylorel)-PO 5 mg bid (range: 20-75 mg/d)


Moderate to severe hypertension


Prevents release of norepinephrine in response to sympathetic stimulation


Confusion; fainting; fatigue; diarrhea; orthostatic hypotension; dizziness

Nursing implications: Give with diuretics to minimize tolerance and fluid retention; weight twice weekly; less side effects after 8 weeks of therapy.

Drug and Dosage Use Action Assessment:Side Effects

Guanfacine hydrochloride (Tenex)-PO 1 mg daily to maximum dose of 3 mg/day


Hypertension combination with thiazide-like diuretics


Centrally acting alphaadrenergic receptor agonist


Drowsiness; weakness; dizziness; dry mouth; constipation; impotence

Nursing implications: Warn patient not to drive or perform activities requiring alertness; take at bedtime to minimize sedation; monitor BP and pulse.

Drug and Dosage Use Action Assessment:Side Effects

Guanethidine SO₄ (Ismelic)-PO 10-50 mg qd in divided doses


Severe to moderately severe hypertension


Blocks norepinephrine at post-ganglionic synapses


Orthostatic hypotension, diarrhea, inhibition of ejaculation

Nursing implications: Postural hypotension is marked in the morning and accentuated by hot weather, alcohol, and exercise; teach to rise slowly; with assistance.

Drug and Dosage Use Action Assessment:Side Effects

Hydralazine HCI (Apresoline)-PO 10-50 mg qid


Moderate hypertension


Dilates peripheral blood vessels, increases renal blood flow


Palpitations, tachycardia, angina pectoris, tremors, depression

Nursing implications:.

Drug and Dosage Use Action Assessment:Side Effects


eclampsia


Relaxes peripheral blood vessels (opens vascular bed-physiological dehydration)


Headache, heart palpitations, gastric, irritation, coronary insufficiency, edema, chills, fever, sever depression

Nursing implications: Side rails up; must not stand without assistance; may be given with diuretics; observe carefully; IM route only; monitor BP; IV for severe hypertension and preeclampsia; in pregnancy, must not decrease arterial pressure too much or too rapidly, otherwise will jeopardize uteroplacental perfusion.

Drug and Dosage Use Action Assessment:Side Effects

Antihypertensives

Methyldopa (Aldomet)-PO 500mg-2 g in divided doses


Severe to moderately severe hypertension


Inhibits formation of dopamine, a precursor of norepinephrine


Initial drowsiness, depression with feelings of unreality, edema, jaundice, dry mouth

Nursing implications: Contraindicated in acute and chronic liver disease; encourage not to drive car if drowsy.

Drug and Dosage Use Action Assessment:Side Effects

Minoxidil (Loniten)-PO 5 mg/day (range: 10-40 mg/day)


Severe hypertension, end-stage organ failure


Relaxes vascular smooth muscle


ECG changes; tachycardia; Na⁺, water retention, hypertrichosis

Nursing implications: Depilatory cream may minimize increased hair growth; report resting pulse increase more than 20 beats/minutes; caution patient to change positions slowly.

Drug and Dosage Use Action Assessment:Side Effects

Phentolamine hydrochloride (Regitine)-PO 50 mg 4-6 doses daily; IV, IM. or local 5-10 mg, diluted in minimum 10 mL normal saline


Prevents dermal necrosis, hypertensive crisis; pheochromocytoma


Blocks alpha-adrenergic receptors


Weakness, dizziness, orthostatic hypotension, nausea, vomiting, abdominal pain

Nursing implications: When giving parenterally, patient should be supine; monitor for overdosage (precipitous drop in BP); do not give with epinephrine.

Drug and Dosage Use Action Assessment:Side Effects

Prazosin (Minipress)-PO 6-15 mg/d bid or tid


Mild to moderate hypertension


Dilates arteries and veins by blocking postsynaptic alpha₁-adrenergic recptors


Dizziness, headache, weakness, palpitations; orthostatic hypotension with first dose

Nursing implications: Monitor: I&O, VS, and weight at beginning of therapy; teach patient/family to check BP at least weekly; need to comply with other interventions (wt. reduction, diet, smoking cessation, exercise).

Drug and Dosage Use Action Assessment:Side Effects

Reserpine (serpasil)-PO 0.25 mg qd


Mild to moderate hypertension


Depletes catecholamines and decreases peripheral vasoconstriction, heart rate, and BP


Depression, nasal stuffiness, increased gastric secretions, rash pruritus

Nursing implications: Watch for signs of mental depression; closely monitor pulse rates of patients also receiving digitalis; avoid alcohol.

Drug and Dosage Use Action Assessment:Side Effects


Obstetric use: Pre-eclampsia


CNS=depressant tranquilizer; sedation is major effect; decreases neutral transmission to nerves; decreases tone in blood vessels


Low level of toxicity; weight gain; diarrhea; allergic reactions-dry mouth, itching, skin eruptions

Nursing implications: Side rails up; must not stand up without assistance; observe carefully; monitory BP.

Drug and Dosage Use Action Assessment:Side Effects

Timolo (Timoptic)-PO 20-40 mg/day; ophthalmic 1 gtt 1-2 times/day


Hypertension, migraine, glaucoma


Blocks stimulation of myocardia l(beta₁) and pulmonary/vascular (beta₂) receptors


Fatigue, weakness, depression, insomnia, peripheral vasoconstruction, diarrhea, nausea, vomiting

Nursing implications: Check VS and evidence of heart failure; do not take if pulse < 50; avoid OTC cold remedies, cofee, tea, and cola.

Drug and Dosage Use Action Assessment:Side Effects

Metaraminol (Aramine)-2-10 mg IM or 15-100 mg in 500 mL sodium


Adrenalectomy


Elevated systolic and diastolic BP by vasoconstriction


Hypertension, cardiac arrhythmias; may cause hypertensive crisis, if on MAO inhibitors or anti depressants

Nursing implications: Monitor VS frequently (q3-5min); observe for side effects; have phentolamine available as antidote.

Drug and Dosage Use Action Assessment:Side Effects

Anti-infectives


Cefazolin (ancef, Kefzol)-IM or IV 250 mg-1.5g q6-12h


Staphylococcus aureus; Escherichia coli; Klebsiella; group A and B Streptococcus; Pneumococcus


Batericidal


Allergic reaction: urticaria, rash; abnormal bleeding

Nursing implications: See penicillin; may cause false-positive lab tests(Coombs, urine glucose); oral probenecid may be taken concurrently to prolong effects of drug.

Drug and Dosage Use Action Assessment:Side Effects

Anti-infectives

Cephalexin (Keflex)-PO 1-4 g daily in 2-4 equally divided doses


Infections caused by gram-positive cocci; infections: respiratory, biliary, urinary, bone, septicemia, abdominal; surgical prophylaxis


Bactericidal effects on suspectible organisms; inhibition of bacterial cell wall synthesis


Nausea, vominting; urticaria; toxic paranoid reactions; dizziness; incread alkaline phosphatase; nephrotoxicity; bone marrow suppression

Nursing implications: Peak blood levels delayed when given with food; report nausea, flushing, tachycardia, headache; monitor for nephrotoxicity and for bleeding.

Drug and Dosage Use Action Assessment:Side Effects

Cephalothin (Keflin, Seffin)-IM, IV 2-12 g/day in 4-6 equally divided doses


Same as cephalexin except not recommended for biliary tract infections


Same as Cephalexin


See Cephalexin

Nursing implications: Same Cephalexin; pain at site of IM; given in large musclel; rotate sites.

Drug and Dosage Use Action Assessment:Side Effects

Ciprofloxacin (Cipro)-PO 250-750 mg q12h; IV 200-400 mg q12h; ophthalmic 1-2 gtt q15-30min, then 4-6 times daily


Lower respiratory tract infections; skin bone, and joint infections; UTI


Inhibits bacterial DNA synthesis


Restlessness, nausea, diarrehea, vomiting, abdominal pain

Nursing implications: Give PO on an empty stomach unless GI irritation occurs, then take with food; do not take with milk or yogurt; IV over 60 minutes.

Drug and Dosage Use Action Assessment:Side Effects

Clarithromycin (Biaxin)-7.5 mg/kg q12h; usual 500 mg q12h


Peptic ulcer


Inhibits protein synthesis of bacterial ribosome


Hypersensitivity to other antibiotics; use with caution in liver/renal impairment

Nursing implications: Take medication around the clock; report signs of superinfection, diarrhea; do not take during pregnancy.

Drug and Dosage Use Action Assessment:Side Effects

Cloxacillin (Tegopen)-PO 250-500 mg q6h


Penicillinase-producing staphylococci infections: respiratory, sinus, and skin


Binds to bacterial cell wall, leading to cell death


Nausea, vomiting, diarrhea, rashes, allergic reactions, seizures (high doses)

Nursing implications: Give around the clock on an empty stomach; observe for signs of superinfection (black, furry tongue, vaginal itching, loose stools).

Drug and Dosage Use Action Assessment:Side Effects

Co-trimoxazole (bactrim, Septra)-PO 160 mg twice daily or 20 mg/kg/day for P.carinii pnuemonia


acute otitis media; urinary tract infection; shigellosis; P. carinii pneumonia; prostatitis


Bacteriostatic; anti-infective; antagonizes folic acid production; combination of sulfamethoxazole and trimethoprim


Hypersensitivity; see Sulfisoxazole

Nursing implications: IV administration can cause phlebitis and tissue damage with exteravasation.

Drug and Dosage Use Action Assessment:Side Effects

Doxycycline (vibramycin)-PO 100 mg q12h on day 1 them 100 mg/day x 7 days; IV-200 mg in 1-2 inf. on day 1; then 100-200 mg/day


chlamydia, other STDs lym disease


Inhibits bacterial protein of the 30S bacterial ribosome


Urticaria, diarrhea; nausea, vomiting; photosensitivity

Nursing implications: Take prescribed medications as orderd; use sunscreen or protective clothing due to photosensitivity; report sings of superinfection, if original symptoms not improved.

Drug and Dosage Use Action Assessment:Side Effects

Erythromycin-adults, PO 250 mg q6h; children, PO 30-50 mg/kg qd


Pnuemonia; pelvic inflammatory disease; intestinal amebiasis; ocular infections; used if allergic to penicillin


Inhibits protein synthesis of microorganism; more effective against gram-positive organisms


Abdominal cramping, distention, diarrhea

Nursing implications: Be sure culture and sensitivity done before treatment; give on empty stomach 1 hour before or 3 hours after meals; do not crush or chew tabs; do not give with fruit juice.

Drug and Dosage Use Action Assessment:Side Effects

Anti-infectives

Gentamicin (Garamycin)-IM, IV 3-5 mg/kg/day in 3-4 divided doses; topical; skin, eye


Serious gram-negative infections; posssible S. aureus, uncomplicated urinary infections


Bactericidal effects on susceptible gram-positive and gram-negative organisms and my-cobacteria


Serious toxic effects: kidneys, ear; causes muscle weakness/paralysis

Nursing implications: Monitor plasma levels (peak is 4-10 μg/mL); patients with burns, cystic fribrosis may need higher doses.

Drug and Dosage Use Action Assessment:Side Effects

Metronidazole (Flagyl) 7.5 mg/kg q6h (not to exceed 4g/day)


Diverticulosis


Disrupts DNA and protein synthesis in suspecible organisms


Cimetidine may decrease metabolism; seizures, dizziness, abdominal paini

Nursing implications: Administer with food or milk to decrease GI symptoms; avoid alcohol; has unpleasant metallic tast; avoid OTC medication while on this drug.

Drug and Dosage Use Action Assessment:Side Effects

Penicillin-penicillin G, penicillin G potassium, penicillin G procaine, ampicillin 400,00-1.2 mil U g8h x 10 days, or single dose of 2.4 mil U


Streptococcus; staphylococcus; Pneumococcus; Gonococcus; Treponema pallidum


Primarily bactericidal


Dermatitis and delayed or immediate anaphylaxis

Nursing implications: Outpatients should be observed for 20 minutes after injection; hospitalized patients should be observed at frequent intervals for 20 minutes after injection.

Drug and Dosage Use Action Assessment:Side Effects

Pentamidine (Pentam)-IV 4 mg/kg once daily; inhale 300 mg via nebulizer


Prevention or treament of P. carinii pneumonia


Appears to disrupt DNA or RNA synthesis to protozoa


Anxiety, headache, bronchospasm, cough, hypotension, arrhythmias, nephrotoxicity, hypoglycemia, leukopenia, thrombocytopenia, anemia, chills

Nursing implications: assess for infection and respiratory status; unpleasant metallic taste may occur (not significant).

Drug and Dosage Use Action Assessment:Side Effects

Sulfisoxazole (Gantrisin), sulfamethizole (Thiosulfil), and sulfisomidine (Elkosin)-PO 2.4 g loading dose, then 1-2 g qid x 7-10 days


Acute, chronic, and recurrent urinary tract infections


Bacteriostatic and bactericidal


Nausea, vomiting, oliguria, anuria, anemia, leukopenia, dizziness, jaundice, skin rashes, and photosensitivity

Nursing implications: Maintenance of blood levels is important; encourage fluids to prevent crystal formation in kidnet tubules-push up to 3,000 mL/day; avoid in later stage of pregnancy and first month of life for newborn (may cause kernicterus).

Drug and Dosage Use Action Assessment:Side Effects

Tetracycline-doxycycline hyclate (Vibramycin), oxytetracycline (terramycin) tetracycline HCI (Sumycin)-PO 250-500 mg q6h; IM 250 mg/day; or IV 250-500 mg q8-12h


Broad-spectrum antibiotic


Primarily bateriostatic


GI upsets such as diarrhea, nausea, vomiting; sore throat; black, hairt tounge; glossitis; inflammatory lesions in anogenital region

Nursing implications: Phototoxic reactions have been reported; patients should be advised to stay out of direct sunlight; medication should not be given with milk or snacks, because food interferes with absorption of tetracyclines; do not give to pregnant women and children under 8 years.

Drug and Dosage Use Action Assessment:Side Effects

Trimethoprim (TMP)/sulfamethoxazole (SMZ) (Bactrim)-PO 160 mg TMP or 800 mg SMZ q12h for 14-21 days; IV 8-10 mg/kg TMP/40-50 mg/kg SMZ q6-12h


Bronchitis, shigella enteritis, otitis media, P. carinii pneumonia, UTI, traveler's diarrhea


Combination inhibits the metabolism of folic acid in bacteria; bactericidal


Nausea, vomiting, rasher, phlebitis at IV site, aplastic anemia, hepatic cerosis

Nursing implications: Check IV site frequently; do not give IM; give PO on empty stomach; take around the clock; avoid exposure to sun.

Drug and Dosage Use Action Assessment:Side Effects

Anti-Inflamatory


Gastrointestinal

Mesalamine (Asacol, Pentusa, Rowasa)-800 mg 3 X day for 6 weeks

 

Local-acting antiinflammatory in GI tract


Contraindicated if patient has allergy to sulfonamides or salicylates; acceleration of symptoms; abdominal pain

nursing implications: Monitor for; abdominal pain, diarrhea, blood in stools, superinfection; if no improvement notify health care professional; may need diagnostic studies

Drug and Dosage Use Action Assessment:Side Effects

Olsalazine (Dipentum)-see mesalamine-PO 1 g/day in 2 divided doses

See Mesalamine


See Mesalamine


See Mesalamine

nursing implications: See Mesalamine

Drug and Dosage Use Action Assessment:Side Effects

Sulfasalazine (Azulifidine)-see mesalamine-PO 3-4 g/day in divided doses


See Mesalamine


See Mesalamine


See Mesalamine

nursing implications: See Mesalamine

Drug and Dosage Use Action Assessment:Side Effects

Glucocorticoids-inhalants Bedomethasone (Beclovent, Vanceril)-42-50 p.g/spray; 2 metered sprays 3-4 X day


Emphysema


Glucocorticoid (inhalation)


Headache, hypersensitivity to fluorocarbon propellant; used with caution in diabetes or glaucoma

nursing implications: Do not exceed 1 mg/day

Drug and Dosage Use Action Assessment:Side Effects

Plunisolide (AeroBid) 42-50 pg/spray; 2 metered sprays 2-4/days


Emphysema


Potent locally acting anti-inflammatory and immune modifier


Headache, dysphonia, fungal infections; adrenal suppression with long-term use

nursing implications: Monitor respiratory status and lung sounds; assess patients changing from systemic to inhaled glucocorticoids for 1

Drug and Dosage Use Action Assessment:Side Effects

Tïiaminolone (Azmacort)-See Bedomethasone


Asthma


See Bedomethasone


See Bedomethasone

nursing implications: See Bedomethasone

Drug and Dosage Use Action Assessment:Side Effects

Glucocorticoids-systemic

Cortisone acetate-PO or IM 20-100 mg qd in single or divided doses


ACTH insufficiency; rheumatoid arthritis; allergies; ulcerative colitis; nephrosis


Anti-inflammatory effect of unknown action


Moon facies, hirsutismm, thinning of skin, striae, hypertension, menstrual irregularities, delayed healing, psychoses

nursing implications: Give oral form pc, with snack at bedtime; give deep IM (never deltoid); monitor vital signs; observe for behavior changes; skin care and activity to tolerance; diet-salt restricted, high protein, KC1 supplement; protect from injury

Drug and Dosage Use Action Assessment:Side Effects

Desoxycorticosterone acetate ( hydrocortisone)-IM/IV 100-500 mg q2-6h; PO 3-5 mg bid qid


Addison s disease; burns; surgical shock; adrenal surgery


Promotes reabsorption of sodium; restores plasma volume, BP, and electrolyte balance


Edema, hypertension, pulmonary congestion, hypokalemia

nursing implications: Salt restriction according to BP readings; monitor vital signs; weigh daily

Drug and Dosage Use Action Assessment:Side Effects

Dexamelhasone (Decadron)-PO 0.5-5.0 mg qd; IM or IV 4-20 mg qd


Addison’s disease; allergic reactions; leukemia; Hodgkin's disease; iritis; dermatitis; rheumatoid arthritis


Anti-inflammatory effect


See Cortisone acetate

nursing implications: Contraindicated in tuberculosis; see Cortisone acetate for nursing care

Drug and Dosage Use Action Assessment:Side Effects

(Solu-Medrol)-IV, IM, 10-40 mg, slowly


Glucocorticoid, corticosteroid


See Dexamethasone


See Dexamethasone

nursing implications: See Dexamethasone

Drug and Dosage Use Action Assessment:Side Effects

Prednisolone (Deltsone)-5-60 mg/day single or divided dose


Multiple sclerosis


Suppress inflammation and normal immune response


Depression, euphoria, peptic ulceration; thromboembolism

nursing implications: Monitor for Homans' sign, abdominal pain, vomiting, tarry stools, mental status or mood changes

Drug and Dosage Use Action Assessment:Side Effects

Prednisone-PO 2.5-15.0 mg qd



Rheumatoid arthritis; cancer therapy


Anti-inflammatory effect of unknown action


Insomnia and gastric distress

nursing implications: See Cortisone acetate

Drug and Dosage Use Action Assessment:Side Effects

Antilipemics


Cholestyramine (Questran)-PO 4 g 1-4 times/day


Hypercholesterolemia; pruritus from increased bile


Binds bile acids in GI tract, increased clearance of cholesterol


Nausea, constipation, abdominal discomfort

nursing implications: Take before meals; do not take with other medications; give others 1 hour before or 4-6 hours after

Drug and Dosage Use Action Assessment:Side Effects

Gemfibrozil (Lopid)-PO 1200 mg/day


Hypercnoiesteroiemia


May inhibit peripheral lipolysis and reduce triglyceride synthesis in liver


GI upset (abdominal pain, epigastric pain, diarrhea, nausea, vomiting), rash, vision

nursing implications: Usecaution when driving or doing tasks requiring alertness; take before meals

Drug and Dosage Use Action Assessment:Side Effects

Lovastatin (Mevacor)-PO 20-80 mg daily with evening meal


Primary hypercholesterolemia


Inhibits enzyme that catalyzes synthesis of cholesterol; decreases synthesis of LDL


Headache, constipation, diarrhea, altered taste, blurred vision, muscle cramps

nursing implications: Give with food; restrict fat, cholesterol, carbohydrates, and alcohol in diet

Drug and Dosage Use Action Assessment:Side Effects

Niacin (vitamin B„ nicotinic acid)-PO 1.5-6.0 g


Hypercholesterolemia


Decreases liver’s production of LDLs and synthesis of triglycerides


GI upset, flushing, pruritus, hy-

nursing implications: Take the drug with meals; prevent flushing by taking an aspirin 30 minutes before; monitor closely during first year of 1 therapy

Drug and Dosage Use Action Assessment:Side Effects

Simvastatin (Zocor)-10-20 mg qd


See Lovastatin


See Lovastatin


See Lovastatin

nursing implications: Give once in the evening with or without food

Drug and Dosage Use Action Assessment:Side Effects

Antineoplastics


6 mercaptopurine

(Purinethol)-PO 2.5 mg/kg/day; may increase to 5 mg/kg after 4 weeks; maintenance 1.5-2.5 mg/kg/day


Leukemia (ulcerative)


Antineoplastic


Bone marrow depression, severe hepatotoxicity

nursing implications: Monitor: bleeding, infection, liver function tests, skin care, nausea and vomiting

Drug and Dosage Use Action Assessment:Side Effects

Methotrexate (Rheumatrex)

15-30 mg/day for 5 days; repeat after 1 week for 3-5 courses


Leukemia

Breast, lung cancer


Interferes with folic acid metabolism, resulting in inhibition of DNA synthesis and cell reproduction


Pulmonary fibrosis, hepatotoxicity, stomatitis, signs and symptoms of chemotherapy side effects

nursing implications: Monitor liver function; assess respiratory status; see nursing care of patients receiving chemotherapy

Drug and Dosage Use Action Assessment:Side Effects

Mitotane (Lysodren) 9-10 g/day in 3-4 divided doses initially; decrease for maintenance


Adrenocortical carcinoma


Affects pituitary disorders


GI complaints; lethargy, somnolence

nursing implications: Monitor: signs of disease progression, Gl abnormalities, abdominal pain

Drug and Dosage Use Action Assessment:Side Effects

Antiparkinson Agents


Benztropine (Cogentin)-1-2 mg/day (range: 0.5-6 mg/day)


Parkinson’s disease


Blocks cholinergic activity in CNS


Blurred vision, dry eyes; constipation; caution with antihistamines, phenothiazines

nursing implications: Take as directed for best results; monitor for drowsiness, dizziness, orthostatic hypotension; good mouth care; use caution with OTC drugs, overheating (drug causes a decrease in perspiration)

Drug and Dosage Use Action Assessment:Side Effects

Carbidopà/levodopa (Sinemet)-10/100,25/100, 25/250 carbidopa/levodopa ratio


Parkinson’s disease


Levodopa is converted to dopamine in CNS, where it serves as a neurotransmitter


Use with MAO inhibitors; may result in hypertensive crisis; some drugs can reverse effects, e.g., phenothiazines, reserpine

nursing implications: Assess parkinsonian symptoms; monitor hepatic, renal function; teach about orthostatic hypotension, gastric ini-1 tation, drowsiness

Drug and Dosage Use Action Assessment:Side Effects

Biperiden (Akineton)-2 mg 3-4X/day; not to exceed 16 mg/day


Parkinson’s disease


Restores natural balance of neurotransmitters in CNS


Same as Benztropine (Cogentin)

nursing implications: See Benztropine

Dizziness, nervousness, blurred vision, mydriasis

Drug and Dosage Use Action Assessment:Side Effects

Trihexyphenidyl (Artane)-1-2 mg daily; usual maintenance dose: 5-15 mg/day in divided dose


Parkinson’s disease


Inhibits action of acetylcholine


nursing implications: Monitor symptoms; avoid orthostatic hypotension; mouth care

Drug and Dosage Use Action Assessment:Side Effects

Antiplatelet


Clopidogrel (Plavix)-PO 75 mg qd


Reduce risk of atherosclerotic event (Ml, stroke)


Inhibits platelet aggregation


Bleeding; neutropenia; reactions similar to aspirin

nursing implications: Give once daily without regard to food; avoid aspirin, NSAlDs; observe for symptoms of: stroke, peripheral vas-1 cular disease, MI

Drug and Dosage Use Action Assessment:Side Effects

Dipyridamole (Persantine)-PO 70-100 mg 4 times/day; IV 570 p.g/kg


Prevent thromboembolism;

surgical graft patency; diagnostic agent in myocardial perfusion studies


Decreases platelet aggregation; coronary vasodilator


Headache, dizziness, hypotension, nausea; MI, arrhythmias with IV

nursing implications: Take at evenly spaced intervals; avoid use of alcohol; if no GI irritation, take 1 hour before or 2 hours after meals

Drug and Dosage Use Action Assessment:Side Effects

Tidopidine (Tidid)-PO 250


Stroke prevention; prevent early restenosis of coronary stents


Inhibits platelet aggregation; prolongs bleeding time


Diarrhea, rashes, bleeding, intracerebral bleeding

nursing implications: Give with food or immediately after eating

Drug and Dosage Use Action Assessment:Side Effects

Antituberculous


First-line drugs

Isoniazid-5-10 mg/kg up to 300 mg PO or IM


Tuberculosis


Supress or interferes with biosynthesis; bacteriostatic


Peripheral neuritis, hepatitis, hypersensitivity

nursing implications: Give pyridoxine (B₆) 10 mg as prophylaxis for neuritis; 50-100 mg as treatment

'Note: To minimize resistant strains, combination therapy is used long term.

Drug and Dosage Use Action Assessment:Side Effects

Ethambutol-15-25 mg/kg PO


See Isoniazid


See Isoniazid


Optic neuritis (reversible with discontinuation of drug; very rare at 15 mg/kg); skin rash

nursing implications: Use with caution with renal disease or when eye testing is not feasible; used in combination with other drug

Drug and Dosage Use Action Assessment:Side Effects

Rifamate combination (isoniazid with rifampin)

Rifater combination (isoniazid and pyrazinamide with rifampin)-see Rifampin


See Rifampin


See Rifampin


See Rifampin

nursing implications: See Rifampin

Drug and Dosage Use Action Assessment:Side Effects

Rifampin-10-20 mg/kg PO mg IV


tuberculosis, meningitis, H. influenzae


Impairs RNA synthesis; bactericidal


Hepatitis, febrile reaction, purpura (rare)

nursing implication: Orange urine color; negates effect of birth control pills

Drug and Dosage Use Action Assessment:Side Effects

Streptomycin-15-20 mg/kg up to 1 g IM


Tuberculosis, endocarditis, tularemia


Inhibits protein synthesis;

bactericidal


Eighth cranial nerve damage, nephrotoxicity

nursing implications: Use with caution in older patients or those with renal disease

Drug and Dosage Use Action Assessment:Side Effects

Pyrazinamide-15-30 mg/kg up to 3 g PO


Tuberculosis


Bactericidal


Hyperuricemia, hepatotoxicity

nursing implications: Loss of glycemic control in those with diabetes

Drug and Dosage Use Action Assessment:Side Effects

Antiulcer


Aluminum hydroxide gel (Amphojel)-PO 5-10 mL q2-4h or 1 hour pc


Gastric acidity; peptic ulcer; phosphatic urinary calculi; J. phosphorus level in chronic renal failure


Buffers HCI in gastric juices without interfering with electrolyte balance


Constipation and fecal im-

nursing implications: Shake well before administering; encourage fluids to prevent impaction and milk-alkali syndrome

Drug and Dosage Use Action Assessment:Side Effects

Calcium carbonate

(Titralac)-PO 1-2 g taken with H,O after meals and at bedtime


Peptic ulcer and chronic


Reduces hyperacidity


Constipation or laxative effect

nursing implications: See Aluminum hydroxide gel

Drug and Dosage Use Action Assessment:Side Effects

Cimetidine (Tagamet)-PO 300-600 mg q6h (qid); IM, IV 300 mg q6h


Duodenal ulcers, GERD, gastric hypersecretion; peptic acid gastritis, heart burn; esophagitis


Inhibits action of histamine at PL-receptor site, inhibits gastric acid secretion; neutralizes and absorbs excess acid


Confusion, dizziness; nausea; rash; diarrhea, constipation; hypermagnesemia

nursing implications: Give with meals or immediately after; avoid smoking; avoid prolonged administration to patients with renal insufficiency

Drug and Dosage Use Action Assessment:Side Effects

Cisapride (Propulsid)-5-10 mg 3-4X/day


Peptic ulcer


Enhances the release of acetylcholine at the myenteric plexus


Anticholinergics will decrease effects; effects of alcohol accelerated

nursing implications: Take as directed; do not miss dose even if feeling well; avoid mixing with OTC drugs; avoid alcohol (may cause drowsiness)

Drug and Dosage Use Action Assessment:Side Effects

Famotidine (Pepcid)-40 mg/day at bedtime or 20mg twice a day


Peptic ulcer


Inhibits gastric acid secretion by inhibiting histamine at H,-receptor site


Use with caution: elderly, renal failure; confusion, arrhythmias, aranugloctosis, aspaltic anemia

nursing implications: Assess for: epigastric pain, blood in stool or emesis; monitor lab values to avoid side effects; take medication for full course of treatment; avoid self medication with OTC drugs; avoid smoking

Drug and Dosage Use Action Assessment:Side Effects

Lansoprazole (Prevacid)-15 mg/day; with H. pylori: 30 mg twice a day with amoxicillin


Peptic ulcer


Binds to an enzyme in presence of gastric acid; prevents final transport of hydrogen ions into gastric lumen


Hypersensitivity; use with caution in elderly; dose change needed with hepatic impairment

nursing implications: Avoid alcohol; report signs ofi Gl bleeding, cramping, abdominal pain, vomiting

Drug and Dosage Use Action Assessment:Side Effects

Magnesium and aluminum hydroxides (Maalox suspension)-PO 5-30 mL ql-3h pc and hs


Gastric hyperacidity; peptic ulcer; heartburn; reflux esophagitis


Neutralizes and binds gastric acids, heals ulcers


Constipation from aluminum hydroxide; diarrhea from magnesium hydroxide

nursing implications: Encourage fluid intake; contraindicated for debilitated patients or those with renal insufficiency

Drug and Dosage Use Action Assessment:Side Effects

Misoprostol (Cytotec) 200 mcg 4 X day


Peptic ulcer


Prostaglandin analogue


Hypersensitivity to prostaglandins; diarrhea; avoid during pregnancy

nursing implications: Monitor effectiveness of the drug; report increase in abdominal pain, bleeding

Drug and Dosage Use Action Assessment:Side Effects

Nizatidine (Axid) see cimetidine


See Cimetidine


See Cimetidine


See Cimetidine

nursing implications: See Cimetidine

Drug and Dosage Use Action Assessment:Side Effects

Omeprazole (Prilosec) 20 mg once daily


Peptic ulcer GERD


Gastric acid-pump inhibitor


Abdominal pain; contraindicated: hypersensitivity

nursing implications: May cause drowsiness, dizziness. Avoid: alcohol, aspirin, NSAlDs, foods that cause GI irritation

Drug and Dosage Use Action Assessment:Side Effects

Ranitidine (Zantac)-PO 150mg bid; IM 50 mg q6-8h; IV 50 mg q6-8h


Duodenal ulcer, gastric ulcer, GERD, gastric hyper secretion


Inhibits action of histamine at H.-receptor site, inhibits gastric acid secretion


Headache, malaise, nausea, constipation, diarrhea

nursing implications: Food does not affect absorption; give 1 hour apart from antacids; smoking interferes with action

Drug and Dosage Use Action Assessment:Side Effects

Sucralfate (Carafate)-PO 1 g qid


Prevention and treatment of duodenal ulcer


Reacts with gastric acid to form a thick paste that adheres to the ulcer surface


Constipation

nursing implications: Give 1 hour before and at bedtime; do not crush or chew tablets; take antacids 30 minutes before or 1 hour after sucralfate; increase fluids and dietary bulk

Drug and Dosage Use Action Assessment:Side Effects

Antiviral


Acyclovir (Zovirax)-PO 200 mg, 3-5 times/day; IV 5 mg/kg q8h over 1 hour; topical 6 times daily for 1 week


Herpes simplex (1,2)


Converts to an active cytotoxic metabolite that inhibits viral DNA replication


Headache, nausea, vomitin diarrhea, increased serum BUN and creatinine

nursing implications: Measure I&O q8h; ensure adequate hydration; assess for common side effects; apply topical with finger cot or rubber glove; refer for counseling

Drug and Dosage Use Action Assessment:Side Effects

Indinavir (Crixivan)-PO 800 mg q8h


HIV; possible prevention in combination therapy


Inhibits action of HIV protease and cleavage of viral polyproteins


Ketoacidosis; kidney stones; hyperglycemia; altered taste; acid regurgitation

nursing implications: Give with water or other liquids (skim milk, coffee, tea, juice) 1 hour before or 2 hours after meal; avoid high-fat, highprotein meal within 2 hrs; with concurrent therapy, may need to take drugs 1 hour apart; capsules are sensitive to moisture-keep desiccant in bottle

Drug and Dosage Use Action Assessment:Side Effects

Nevirapine (Viramune)-PO200 mg qd for 2 weeks, then bid


HIV; delays disease progression


Binds to the enzyme reverse transcriptase; disrupts DNA synthesis


Rash; Stevens-Johnson syndrome (severe erythema multiforme)

nursing implications: Give with or without food; drug does not cure AIDS-decreases opportunistic infections

Drug and Dosage Use Action Assessment:Side Effects

Zidovudine (AZT, Retrovir)- PO 200 mg q4h


AIDS and related disorders


Inhibits HIV replication


Blood disorders, especially anemia and granulocytopenia; headache; nausea; insomnia; myalgia

nursing implications: Monitor for signs of opportunistic infection and adverse drug effects; drug must be taken around the clock; regular blood tests (q2wk)

Drug and Dosage Use Action Assessment:Side Effects

Blood Viscosity-Reducing Agent

Pentoxifylline (Trental)-PO 400 mg tid


Peripheral vascular disease (intermittent claudication)


Increases flexibility of RBCs; inhibits platelet aggregation


Nausea, vomiting, GI upset; drowsiness; dizziness; headache

nursing implications: Give with meals to minimize GI irritation; take tablets whole; report persistent GI or CNS side effects

Drug and Dosage Use Action Assessment:Side Effects

Bronchodilators

Albuterol (Ventolin)-PO 2-6 mg 3-4 times/day; inhale q4-6h or 2 puffs 15 minutes before exercise


Bronchodilator


Results in accumulation of cyclic adenosine monophosphate (cAMP) at betaadrenergic receptors


Nervousness, restlessness, tremor, hypertension, nausea

nursing implications: Give with meals; allow 1 minute between inhalations; rinse mouth with water after inhalation

Drug and Dosage Use Action Assessment:Side Effects

Aminophylline-PO 250 mg bid-qid: rectal 250-500 mg; IV 250-500 mg over 10-20 minutes


Rapid relief of bronchospasm; asthma; pulmonary edema


Relaxes smooth muscles and increases cardiac contractility; interferes with reabsorption of Na’ and Cl’ in proximal tubules


Nausea, vomiting, cardiac arrhythmias, intestinal bleeding, insomnia, restlessness, and rectal irritation from suppository

nursing implications: Give oral span class="font0" style="font-style:italic;">with or after meals; monitor vital signs for changes in BP and pulse; weigh daily; IM injections are painful

Drug and Dosage Use Action Assessment:Side Effects

Ephedrine SO₄-PO, SC, or IM 25 mg tid-qid


Asthma: allergies; bradycardia; nasal decongestant


Relaxes hypertonic muscles in bronchioles and GI tract


Wakefulness, nervousness, dizziness, palpitations, hypertension

nursing implications: Monitor vital signs; avoid giving dose near bedtime; check urine output in older adults

Drug and Dosage Use Action Assessment:Side Effects

Ipratropium (Atrovent) 1-4 inhalations


Emphysema


Inhibits cholinergic receptors in bronchial smooth muscle


Nasal dryness, epistaxis; fluorocarbon toxicity when used with other inhalants

nursing implications: Instruct proper use of inhaler; do not use more than 12 metered doses in 12 hours; if severe bronchospasm occurs, consult physician/nurse practitioner

Drug and Dosage Use Action Assessment:Side Effects

Isoproterenol HC1 (Isuprel)-inhalation of 1:100 or 1:200 solution


Mild to moderately severe asthma attack; bronchitis; pulmonary emphysema


Relaxes hypertonic bronchioles


Nervousness, tachycardia, hypertension, insomnia

nursing implications: Monitor vital signs before and after treatment; teach patient how to use nebulizer

Drug and Dosage Use Action Assessment:Side Effects

Bronchodilators

Metaproterenol (Alupent) 20 mg 3-4 times/day; ininhalations


Asthma


Bronchodilation


Nervousness, restlessness, tremor, paradoxical bronchospasm

nursing implications: Assess lung sounds; observe for wheezing (paradoxical bronchospasm); observe patients’ respiratory signs and symptoms; refer to health care professional if symptoms persist or shortness of breath continues

Drug and Dosage Use Action Assessment:Side Effects

Salmeterol (Serevent)-50 pg twice a day (two inhalations)


Asthma


Produces accumulation of cAMP al beta-adrenergic receptors


Headache, palpitations, abdominal pain; avoid when using beta-adrenergic agents (decreases effectiveness)

nursing implications: Assess lung : i do not use for acute symptoms

Drug and Dosage Use Action Assessment:Side Effects

Theophylline-PO 400 mg/day in divided doses; max adult dose. 900 mg divided dose


Treatment/prevention of em-Bronchodilation physema, asthma (bronchoconstriction); chronic bronchitis


Bronchodilation


Restlessness; increased respiration, heart rate; palpitations, arrhythmias; nausea, vomiting; increased urine output-> dehydration

nursing implications: Monitor theophylline levels: 10-20 ug/mL monitor signs of toxicity; take with 8 oz water or with meals to decrease G1 symptoms

Drug and Dosage Use Action Assessment:Side Effects

Terbutaline (Brethine)-PO 2.5-5.0 mg q6h (not to exceed 20 mg/24 hours); SC 0,25 mg, repeat 15-30 minutes (not to exceed 0.5 mg/hour); inhalation-2 puffs (0.2 mg each) q4-6h


Bronchospasm

Obstetric use: may be used for premature labor; currently not FDA approved for use as tocolytic agent, but used


See Isoproterenol


See Isoproterenol

If used in pregnancy: maternal and fetal tachycardia

nursing implications: See Isoproterenol

Drug and Dosage Use Action Assessment:Side Effects

Zafirlukast (Accolate)-20 mg twice daily


Asthma


Antagonizes the effects of leukotrienes


Headache, fever, infection, pain

nursing implications: Monitor lung sounds, respiratory function

Drug and Dosage Use Action Assessment:Side Effects

Zileuton (Zyflo)-600mg qid


Asthma


Enzyme inhibitor


Headache, fever, infection, chest pain increases blood level of theophylline, propranolol, warfarin

nursing implications: Assess lung sounds; do not discontinue or reduce dosage without consulting health care professional; not used to treat acute attack

Drug and Dosage Use Action Assessment:Side Effects

Calcium Channel Blockers

Amlodipine (Norvasc)-PO 5-10 mg qd


Hypertension, angina pectoris, vasospastic angina (Prinzmetal’s), muscle cells


Inhibits the transport of calcium into myocardial and vascular smooth muscle


Arrhythmias, peripheral edema, heart failure, photosensitivity, gingival hyperplasia

nursing implications: Instruct patient to: monitor pulse, report rate <50 beats/minutes, take with or without food

Drug and Dosage Use Action Assessment:Side Effects

Dilitiazem (Cardizem)-PO 30-120 mg 3-4 times/dat; IV 5-15 mg/hours


Angina, hypertension, artial arrhythmias


Inhiabits excitation-contraction; decreased SA, AV node conduction


Headache, fatigue, arrhythmias, edema, hypotension, constipation, rash

nursing implications: May take with meals; take pulse; do nor give drug if pulse <50 beats/minutes; change positions slowly; may take nitroglycerin sublingually concurrently

Drug and Dosage Use Action Assessment:Side Effects

Metoprolol (Lopressor)-100 mg/day up to 450 mg/day


Hypertension


Blocks stimulation of myocardial adrenergic receptors (beta,)


Contraindictated in CFG, pulmonary edema; caution with renal impairment

nursing implications: Monitor vitals, especially BP; prevent orthostatic hypotension; avoid self-medication with OTC; may cause drowsiness; medication may increase sensitivity to cold

Drug and Dosage Use Action Assessment:Side Effects

Nicardipine (Cardene)-PO 20-40 mg tid


Angina, hypertension


Calcium channel blocker, inhibits excitation-contraction


Dizziness, light-headedness, headache, peripheral edema, flushing

nursing implications: Give on an empty stomach; chest pain may occur 30 minutes after dose (temporary, from reflex tachycardia)

Drug and Dosage Use Action Assessment:Side Effects

Nifedipine (Procardia)-PO 10-30 mg tid (not to exceed 180 mg/day); sublingual 10 mg repeated in 15 minutes


Angina, hypertension

Obstetric use: may be used for premature labor. Currently not FDA approved for use as tocolytic agent


Calcium channel blocker, vasodilation


Dizziness, light-headedness, giddiness, headache, nervousness, nasal congestion, sore throat, dyspnea, cough, wheezing, nausea, flushing, warmth

nursing implications: May take with meals; make position changes slowly; angina may occur 30 minutes after dose (temporary)

Drug and Dosage Use Action Assessment:Side Effects

Verapamil (Calan, Isopten)-PO 240-480 mg, 3-4 limes/day; IV 75-150 pg/kg


Angina; supraventricular arrhythmias; essential hypertension


Inhibits calcium movement into smooth-muscle cells; lowers pressure by reducing cardiac contractility


Constipation, AV block, hepatotoxicity

nursing implications:

Monitor VS and ECG for bradycardia and arrhythmias; observe for jaundice, abdominal pain; encourage fluids and bulk-forming foods

Drug and Dosage Use Action Assessment:Side Effects

Cardiac Glycosides


Digitoxin-digitalizing dose: PO 200 pg twice/day; IM or IV 200-400 pg; maintenance dose: PO 50-300 pg qd


Heart failure: atrial fibrillation and flutter; supraventricular tachycardia


Increases force of cardiac contractility, slows heart rate, decreases right atrial pressures, promotes diuresis


Arrhythmias; nausea, vomiting; anorexia, malaise; color vision, yellow or blue

nursing implications: Hold medication if pulse rate less than 50 or over 120; encourage foods high in potassium (e.g., bananas, orange juice); observe for signs of electrolyte depletion, apathy, disorientation, and anorexia

Drug and Dosage Use Action Assessment:Side Effects

Digoxin (Lanoxin)-digitalizing dose: PO 10-J 5 pg/kg; IV 0.6-1 mg/kg; maintenance dose: PO 0.125-0.375 mg qd


See Digitoxin


See Digitoxin


See Digitoxin

nursing implications: See Digitoxin

Drug and Dosage Use Action Assessment:Side Effects

Chemotherapy (see Tables 7-41 and Antineoplastica 10-8)


Cholinergic

Bethanechol chloride (Urecholine)--PO 5-30 mg; SC 2.5-5.0mg


Postoperative abdominal atony and distention; bladder atony with retention; postsurgical or postpartum urinary retention; myasthenia gravis


Increases GI and bladder tone; decreases sphincter tone


Belching, abdominal cramps, diarrhea, nausea, vomiting, incontinence, profuse sweating, salivation, respiratory depression

nursing implications: Check respirations; have urinal or bedpan close at hand and answer calls quickly; atropine SO₄ is the antidote for cholinergic drugs

Drug and Dosage Use Action Assessment:Side Effects

Edrophonium (Tensilon)-IV 2 mg; IM 10 mg


Diagnosis of myasthenia gravis; reversal of neuromuscular blockers


Inhibits breakdown of acetylcholine; anticholinesterase, cholinergic


Excess secretions, bronchospasm, bradycardia, abdominal cramps, vomiting, diarrhea, excess salivation, sweating

nursing implications: Effects last up to 30 minutes; give IV undiluted with TB syringe

Drug and Dosage Use Action Assessment:Side Effects

Neostigmine (Prostigmin)-PO 15-30 mg q3-4h; SC, IM 0.25-1 mg


Myasthenia gravis, postoperative bladder distention, urinary retention, reversal of neuromuscular blockers


Inhibits breakdown of acetylcholine; cholinergic


Excess secretions, bronchospasm, bradycardia, abdominal cramps, vomiting, diarrhea, excess salivation, sweating

nursing implications: Take oral form with food or milk; with chewing difficulty, take 30 minutes before eating

Drug and Dosage Use Action Assessment:Side Effects

Pilocarpine HCI-1-2 gtts 1-2% solution up to 6 times/days


Chronic open-angle and acute closed angle glaucome


Contraction of the sphincter muscle of iris, resulting in miosis


Brow ache, headache, occular pain, blurring and dimness of vision, allergic conjunctivitis, nausea, vomiting, profuse sweating; bronchoconstriction in patients with bronchial asthma

nursing implications: Initially the medication may be irritating; te1 proper sterile technique for instilling drops-wipe excess solution to prevent systemic symptoms; discard cloudy solutions

Drug and Dosage Use Action Assessment:Side Effects

Physostigmine salicylate (Eserine)-0.1 mL of 0.25-10% solution: not more than qid; IM, IV 0.5-3 mg


Glaucoma, reverse effects of tricyclic antidepressants, overdose, toxic effects of atropine and diazepam


Increases concentration of acetylcholine


Sweating, marked miosis, lacrimation, nausea, diarrhea

nursing implications: If brown eyed, may require stronger solution or more frequent dose

Drug and Dosage Use Action Assessment:Side Effects

Pyridostigmine (Mestinon)-PO 60 mg/day X 3 days; IM, IV 2 mg q2-3h Maintenance: 60-150 mg/day


Myasthenia gravis, reversal of neuromuscular blockers


Inhibits breakdown of acetylcholine and prolongs its effects


See Neostigmine

nursing implications: See Neostigmine

Drug and Dosage Use Action Assessment:Side Effects

Central Nervous System Stimulants


Amphetamine SO₄-PO 5-60 mg qd in divided doses


Mild depressive states; narcolepsy; postencephalitic parkinsonism; obesity control; minimal brain dysfunction in children (attention deficit disorder)


Raises BP, decreases sense of fatigue, elevates mood


Restlessness, dizziness, tremors, insomnia; increased libido; suicidal and homicidal tendencies; palpitations; anginal

nursing implications: Give before 4 p.m. to avoid sleep disturbance; dependence on drug may develop; contraindicated with MAO inhibitors, hyperthyroidism, and psychotic states

Drug and Dosage Use Action Assessment:Side Effects

Methylphenidate hydrochloride (Ritalin)-PO 0.3 mg/kg/day or adults 20-60 mg in divided doses


Childhood hyperactivity; narcolepsy; attention deficit disorder in children


Mild CNS and respiratory stimulation


Anorexia, dizziness, drowsiness, insomnia, nervousness, BP and pulse changes

nursing implications: To avoid insomnia take last dose 4-5 hours beforea bedtime; vital signs; check weight 2-3 times weekly and report weight losses

Drug and Dosage Use Action Assessment:Side Effects

Decongestants

Phenylephrine (NeoSynephrine, Sinex)-SC, IM

2-5 mg q!0-15min not to exceed 5 mg; IV 40-60 pg/minutes; nasal 2-3 gtts or 1-2 sprays q3-4h; ophthalmic 3 gtt/day


Shock, hypotension, decongestant, adjunct to spinal anesthesia, mydriatic


Constricts blood vessels by stimulating alpha-adrenergic receptors


Dizziness restlesness, dyspnea, tachycardia, arrhythmias; ophthalmological: burning, photophobia, tearing

nursing implications: Check for correct concentration; protect eyes from light sensitivity; blow nose before using; rebound congestion will occur with prolonged use

Drug and Dosage Use Action Assessment:Side Effects

Pseudoephedrine (Sudafed)-PO 60 mg q4~6h


Nasal congestion, allergies, chronic ear infections


Produces vasoconstriction in respiratory tract and possibly bronchodilation


Nervousness, anxiety, palpitations, anorexia

nursing implications: Give at least 2 hours before bedtime to minimize insomnia

Drug and Dosage Use Action Assessment:Side Effects

Diuretics

Acetazolamide (Diamox)-PO 250-1000 mg/day; IV 500 mg


Glaucoma; heart failure; convulsive disorders


Weak diuretic; produces acidosis; self-limiting effect; increases bicarbonate excretion


Electrolyte depletion symptomatalogy-lassitude, apathy, decreased urinary output, mental confusion

nursing implications: Weigh daily; I&O; assess edema; give early in day to allow sleep at night; observe for side effects; replace electrolytes as ordered

Drug and Dosage Use Action Assessment:Side Effects

Ethacrynic acid (Edecrin)-PO 50-200 mg qd in divided


Pulmonary edema; ascites; edema of heart failure


Inhibits the reabsorption of Na' in the ascending loop of Henle


Nausea, vomiting, diarrhea, hypokalemia, hypotension, gout, dehydration, deafness, metabolic acidosis

nursing implications: Assess for dehydration-skin turgor, neck veins; hypotension; KCl supplement

Drug and Dosage Use Action Assessment:Side Effects

Furosemide (Lasix)-PO 40-80 mg qd in divided


Edema and associated heart failure; cirrhosis; renal disease; nephrotic syndrome: hypertension


Inhibits Na* and Cl* reabsorption in the loop of Henle


Dermatitis, pruritis, paresthesia, blurring of vision, postural hypotension, nausea, vomiting, diarrhea, dehydration, electrolyte depletion, hearing loss (usually reversible)

nursing implications: Assess for weakness, lethargy, leg cramps, anorexia; peak action in 1-2 hours; duration 6-8 hours; do not give at bedtime; supplemental KCl indicated; may induce digitalis toxicity

Drug and Dosage Use Action Assessment:Side Effects

Hydrochlorothiazide (HydroDlURIL and Esidrix 25-100 mg tid)-PO Diuril 0.5-1.0 qd


Edema; heart failure; Na* retention in steroid therapy; hypertension


Inhibits NaCI and water reabsorption in the distal ascending loop and the distal convoluted tubule of the kidneys


Hypokalemia, nausea, vomiting, diarrhea, dizziness, paresthesias; may exacerbate diabetes

nursing implications: Watch for and acetone

Drug and Dosage Use Action Assessment:Side Effects

Mannitol (Osmitrol)-50-100 gm/24 hours as 15-20% solution


Cerebral edema, oliguria, acute renal failure, drug intoxication


Hypertonic solution that kidney tubules cannot reabsorb. thereby causing obligatory water loss


Diarrhea; water intoxication, thirst, headache

nursing implications: Usually Foley catheter required; monitor cardiac and respiratory status; a rate of infusion to elicit 30-50 mL urine/hour

Drug and Dosage Use Action Assessment:Side Effects

Spironolactone (Aldactone)-PO 25 mg bid-qid


Cirrhosis of liver; when other diuretics are ineffective


Inhibits effects of aldosterone in distal tubules of kidney


Headache, lethargy, diarrhea, ataxia, skin rash, gynecomastia

nursing implications: Potassium-sparing drug; do not give supplemental KCl; monitor for signs of electrolyte imbalance

Drug and Dosage Use Action Assessment:Side Effects

Emetic

Ipecac syrup-PO 15-30 mL for emesis, followed by 1-2 glasses H2O (adults and children > 1 year); 5-10 mL followed by 1/2-1 glass H20 (children < 1 year)


Emergency emetic for poison ingestion


NH, ions cause gastric irritatom


Violent emesis, tachycardia, decreased BP, dyspnea

nursing implications: Contraindicated in liver and renal disease; if given for emesis, follow dose with as much water as patient will drink

Drug and Dosage Use Action Assessment:Side Effects

Enzyme

Pancrelipase (Viokase)-adults, PO 325 mg-1 g qd, during meals; children, PO 300-600 mg lid


Chronic pancreatitis; cystic fibrosis; gastrectomy; pancreatectomy; sprue


Assists in digestion of starch, protien, and fats; decreases nitrogen and fat content of stool


Anorexia, nausea, vomiting, diarrhea, buccal/anal soreness (infants), sneezing, skin rashes, diabetes

nursing implications: May be taken with antacid or cimetidine; do not crush or chew tabs; monitor I&O, weight; be alert for signs of di| abetes; children may use sprinkles

Drug and Dosage Use Action Assessment:Side Effects

Expectorats

Guaifenesin (Robitussin)-100-400 mg q4h


Respiratory congestion


Increases expectoration by Low incidence of GI upset; causing irritation of gastric muscoa; reduce adhesiveness/surface tension of respiratory tract fluid


Low incidence of GI upset; drowsiness

nursing implications: Encourage to stop smoking; increase fluid intake; respiratory hygiene

Drug and Dosage Use Action Assessment:Side Effects

Terpin hydrate-PO 5-10 mL, q3-4h


Bronchitis; emphysema>


Liquefies bronchial secretions


Nausea, vomiting, gastric irritation

nursing implications: Give undiluted; push fluids

Drug and Dosage Use Action Assessment:Side Effects

Fibrinolytic Agents


Alteplase, recombinant (Activase, tPA)-IV bolus 100 mg given over 1-2 minutes; then 50 mg over 30 minutes; 35mg over 60min


Acute MI; under investigation for pulmonary emboli, deep-vein thrombosis, and peripheral artery thrombosis


Promotes conversion of plasminogen to plasmin, which is fibrinolytic


Internal or local bleeding; urticaria; dysrhythmias related to reperfusion; hypotension; nausea, vomiting

nursing implications: Assess for signs of reperfusion (relief of chest pain, no ST segment elevation); observe for bleeding; avoid IM in| jection; do not mix other medications in line

Drug and Dosage Use Action Assessment:Side Effects

Streptokinase-IV 1.5 million U diluted to 45 mL infused over 60 minutes


Lysis of pulmonary or systemic emboli or thrombi; acute MI


Reacts with plasminogen, dissolves fibrin clots


Prolonged coagulation; allergic reactions; mild fever

nursing implications: Monitor for signs of excessive bleeding, particularly at injection sites; avoid nonessential handling of patient

Drug and Dosage Use Action Assessment:Side Effects

Urokinase-IV 4400 lU/kg over 10min; 1.0-1.8 mL of 5000 lU/mL into catheter


Massive pulmonary emboli, coronary artery thrombi, occluded IV catheter


Directly activates plasminogen


Bleeding, anaphylaxis, rash

nursing-implications: Vital signs; check ql5min for bleeding during first hour; ql5-30min for 8 hours; have epinephrine ready

Drug and Dosage Use Action Assessment:Side Effects

Fibrinolytic Antidote


Aminocaproic acid (Amicar)-PO, IV 5 g loading dose; 1 g/hour to 30 g in 24 hours


Management of streptokinase or urokinase overdose


Inhibits plasminogen activator and atagonize plasmin


Hypotension, bradycardia, cardiac arrhythmias

nursing implications: Give slowly IV to prevent side effects; not recommended for D1C

Drug and Dosage Use Action Assessment:Side Effects

Hormones

Chlorotrianisene (TACE), estrogen-PO 12-50 mg


Prostatic cancer; menopause


Nonsteroidal synthetic estrogen


Rare after one course of treatment; thromboembolism; impotence and gynecomastia in men

nursing implications: Supply patient with package insert; contraindicated in blood coagulation disorders

Drug and Dosage Use Action Assessment:Side Effects

Diethylstilbestrol (DES)-PO or IM 0.2-5.0 mg qd; vaginal suppository 0.1-0.5 mg at bedtime


Prostate carcinoma;

menopausal symptoms; osteoporosis; pain; mammary carcinoma; atrophic vaginitis


Synthetic nonsteroidal compound with estrogenic effects on pituitary, ovaries, myometrium, endometrium, and other tissues


Anorexia, nausea, vomiting. headache, diarrhea, dizziness, fainting-many side effects with long-term use

nursing implications: Never give if `an is pregnant-predisposes to vaginal cancer in female offspring at puberty

Drug and Dosage Use Action Assessment:Side Effects

Estradiol-PO 1-2 mg for replacement therapy; up to 10 mg for cancer qd-tid; cyclic (on 3 weeks, off 1 week)


Menopausal symptoms; osteoporosis; hypogenitalism; sexual infantilism; breast and prostatic carcinoma


Inhibits release of pituitary gonadotropins; promotes growth of female genital tissues


Anorexia, nausea, vomiting, diarrhea, fluid retention, mental depression, headache, thromboembolism; feminization in men

nursing implications: Baseline VS; weigh daily; encourage frequent physical checkups to check serum lipids; teach breast seifexamination

Drug and Dosage Use Action Assessment:Side Effects

Medroxyprogesterone (Provera)-PO 2.5-10.0 mg; IM 400-1000 mg weekly


Amenorrhea; functional uterine bleeding; threatened abortion; dysmenorrhea; adjunctive and palliative with renal cancer and endometriosis; PMS


Similar to progesterone, but can be taken orally; thickens uterine decidua


Drowsiness, cyclic menstrual withdrawal bleeding, GI upset, headache, edema, breast congestion

nursing implications: Teach patient regarding self-administration; breast self-examination for possible breast changes

Drug and Dosage Use Action Assessment:Side Effects

Menotropins (Pergonal)-IM 1 amp (FSH + LH)/day for 9-12 days (followed by 5000-10,000 U HCG, if ovulation does not occur, repeat with 2 amp)


Infertility use: treatment of secondary anovulation; stimulation of spermatogenesis


Human gonadatropic responses; induces ovulation; sperm stimulation


Abortions occur in 25%; failure rate 55-80% of patients; possible multiple births; ovarian enlargement; gynecomastia in men

nursing lmpucations: Assist in collection of urine to assess estrogen levels; counsel regarding couple’s need to have daily intercourse from day of HCG injection until ovulation

Drug and Dosage Use Action Assessment:Side Effects

Progesterone-SC or IM 5-10 mg qd; sublingual 5-10 mg


Amenorrhea; dysmenorrhea; endometriosis; habitual abortion


Converts endometrium into secreting structure; prevents of mammary tissue


Nausea, vomiting, dizziness, edema, headache, protein metabolism

nursing implications: Give deep IM and rotate sites; weigh daily to ascertain fluid retention

Drug and Dosage Use Action Assessment:Side Effects

Testosterone-PO 5-10 mg qd; IM 25-50 mg 2-3 times/weeks; 200-400 mg IM q2-4wk for breast cancer


Hypogonadism; eunuchism; impotence; advanced cancer of breast


Growth of sex organs and appearance of secondary male sex characteristics; counteracts excessive amounts of estrogen


Nausea, dyspepsia, masculinization, hypercalcemia, menstrual irregularities, renal calculi; Na+, K+, and H2O retention

nursing implications: Observe for edema; weigh daily; I&O; push fluids for bedridden patients, to prevent renal calculi

Drug and Dosage Use Action Assessment:Side Effects

Vasopressin (Pitressin)-IM/SC 5-10 |x bid/qid; IM/SC 2.5-5 p. q2-3d for chronic therapy


Diabetes insipidus


Antidiuretic


Nausea, flatus, tremor, pounding in head, water intoxication

nursing implications: Monitor fluid balance, vital signs

Drug and Dosage Use Action Assessment:Side Effects

Immune Modifiers


Glatiramer acetate (Copaxone)-20 mg/day


Multiple sclerosis


Management of relapsingremitting MS


Allergic reactions, anxiety, chest pain, weight gain, cough

nursing implications: Monitor for side effects; new drug to attempt to control signs and symptoms of progressing multiple sclerosis

Drug and Dosage Use Action Assessment:Side Effects

Interferon p-lb (Betaseron)-30 p.g once a week


Multiple sclerosis


Reduce incidence of relapse


Seizures, GI symptoms, flulike symptoms, neutropenia, injection site reactions

nursing implications: Monitor progress of multiple sclerosis; determine if drug is effective in reducing incidence of relapse; provide information about multiple side effects

Drug and Dosage Use Action Assessment:Side Effects

Immunosuppressant Agents


Azathioprine (Imuran)-3-5 mg/kg/day initially; maintenance: 1-3 mg/kg/day


Prevent renal transplant rejection

Ulcerative colitis

Rheumatoid arthritis


Antagonizes purine metabolism/inhibition ofDNA/RNA synthesis


Hypersensitivity; additive myelosuppression with antineoplasties; hepatotoxicity, leukopenia

nursing implications: Assess for infection; monitor I&O and daily weight

Drug and Dosage Use Action Assessment:Side Effects

Cyclosporine (Sandimmune)-PO 5-10 mg/kg several hours before surgery; daily for 2 weeks; reduce dosage by 2.5 mg/kg/week to 5-10 mg/kg/day. IV 5-6 mg/kg several hours before surgery daily; switch to PO form as soon as possible


Prevent organ rejection Ulcerative colitis Rheumatoid arthritis


Inhibits interleukin-2, which is necessary for initiation of T-cell activity


Hypersensitivity; caution with alcohol, renal impairment

`

nursing implications: Monitor: l&O, daily weight, blood pressure; take as directed (time of day and with food); observe nephrotoxicity, gingival hyperplasia; avoid self administration of OTC drugs

`
Drug and Dosage Use Action Assessment:Side Effects

Muromonab-CD3 (Orthoclone OKT3)-IV 5 mg/day, 10-14 days


Renal, liver, or cardiac transplant rejection


Immunosuppression of T-cell function


Tremor; dyspnea, shortness of breath; wheezing; chest pains; diarrhea; nausea, vomiting; chills, fever

nursing implications: Draw solution into filter; give IV push over < 1 minute; do not give as IV infusion; do not mix with other medications

Drug and Dosage Use Action Assessment:Side Effects

Mycophenolate (CellCept)-PO 1 g bid


Prevent renal transplant rejection


Inhibits purine synthesis; sup-Diarrhea; vomiting; leukopenia; presses T and B lymphocytes


Diarrhea; vomiting; leukopenmia; sepsis

nursing implications: Give initial dose within 72 hour of transplant; give on empty stomach 1 hour before or 2 hours after meals; do not open, crush, or chew capsules; do not give with magnesium or aluminum antacids

Drug and Dosage Use Action Assessment:Side Effects

Tracrolimus-PO 0.075-0.15 mg/kg ql2h; IV 0.05-0.1 mg/kg/day


Prevent rejection in liver transplant


Inhibits T-lymphocyte activation


Headache, insomnia, tremor, ascites, hypertension, peripheral edema, abdominal pain, rash, hyperglycemia, anemia

nursing implications: Give 6 hours after transplant; oral therapy is preferred because of anaphylaxis with IV; therapy is lifelong

Drug and Dosage Use Action Assessment:Side Effects

Mineralocorticoid Agent


Fludrocortisone (Florinef)-PO 0.1-0.2 mg qd


Addison’s


Causes sodium reabsorption, hydrogen and potassium excretion, and water retention


Heart failure; adrenal suppression, hypertension

nursing implications: Do not miss dose; therapy is lifelong; high potassium; report: weight gain, muscle weakness, cramps, nausea, anorexia, dizziness

Drug and Dosage Use Action Assessment:Side Effects

Mucolytic Agent


Acetylcysteine (Mucomysl)-1-5 mL of 20% solution or 1-10 mL of 10% solution per nebulizer tid


Emphysema; pneumonia; tracheostomy care; atelectasis; cystic fibrosis


Lowers viscosity of respiratory secretions by opening disulfide linkages in mucus


Stomatitis, nausea, rhinorrhea, bronchospasm

nursing implications: Observe respiratory rate; maintain open airway with suctioning as necessary; observe asthmatics carefully for increased bronchospasm; discontinue treatment immediately if this occurs; odor disagreeable initially

Drug and Dosage Use Action Assessment:Side Effects

Muscle Relaxants


Baclofen (Lioresal)-5 mg tid up to 10-20 mg 4 times/day maintenance dose


Relief of spasticity of multiple sclerosis, spinal cord injury


Centrally acting skeletal-muscle relaxant; depresses polysynaptic afferent reflex activity at spinal cord level


Pruritis, tinnitus; nausea, vomiting; diarrhea or constipation; drowsiness

nursing implications: Administer with food if G1 symptoms; monitor for safety when ambulating; do not discontinue abruptly

Drug and Dosage Use Action Assessment:Side Effects

Dantrolene sodium (Dantrium)-25 mg/day to 25 mg bid-tid to 100 mg qid max


See Baclofen


See Baclofen


See Baclofen

nursing implications: See Baclofen

Drug and Dosage Use Action Assessment:Side Effects

Narcotic Antagonist


Naloxone HC1 (Narcan)-IV 0.1-0.2 mg repeated q2-3 minutes p.r.n up to 0.4-2 mg for narcotic-induced respiratory depression


Reverses respiratory depression due to narcotics


Reverses respiratory depression of morphine SO4, meperidine HC1, and methadone HC1; does not itself cause respiratory depression, sedation, or analgesia


No common side effects; tachycardia, hypertension, nausea and vomiting with high

nursing implications: Note time, type of narcotic, dosage received; not useful with CNS depression from other drugs; respiratory depression may return; monitor closely

Drug and Dosage Use Action Assessment:Side Effects

Sedatives and Hypnotics


Chlordiazepoxide HCI (Librium)-PO 5-10 mg; IM or IV 50-100 mg


Psychoneuroses; preoperative apprehension; chronic alcoholism; anxiety


CNS depressant resulting in mild sedation; appetite stimulant; anticonvulsant


Ataxia, fatigue, blurred vision, diplopia, lethargy, nightmares, confusion

nursing implications: Ensure anxiety relief by allowing patient to verbalize feelings; advise patient to avoid driving and alcoholic bever ages

Drug and Dosage Use Action Assessment:Side Effects

Chloral hydrate-PO 250 mg tid; hypnotic: PO 0.5-1.0 g; rectal supplement 0.3-0.9 g


Sedation for elderly; delirium tremens; pruritus; mania; barbiturate and alcohol withdrawal


Depresses sensorimotor areas of cerebral cortex


Nausea, vomiting, gastritis; pinpoint pupils; delirium; rash; decreased BP, pulse, respirations, temperature; hepatic damage

nursing implications: Caution: should not be taken in combination with alcohol; dependency is possible

Drug and Dosage Use Action Assessment:Side Effects

Diazepam (Valium)-PO 2-10 mg tid-qid; IM or IV 2-10 mgq3-4h


Anxiety disorders; alcohol withdrawal; adjunctive therpreoperative or preprocedural sedation (also see Midazolam)


Induces calming effect on limbic system, thalamus, and hypothalamus


CNS depression-sedation or ataxia (dose related); dry mouth; blurred vision; mydriasis; constipation; urinary retenstion

nursing implications: Do not mix with other drugs; IM injection painful; observe for phlebitis; monitor response; measures to ensure patient safety (e.g., falls); high potential for abuse; contraindicated in acute closed-angle glaucoma and porphyria

Drug and Dosage Use Action Assessment:Side Effects

Flurazepam (Dalmane)-PO > 15 years, 30 mg hs; elderly or debilitated, 15 mg hs


Hypnotic


Fastest acting; see Diazepam


See Diazepam

nursing implications: See Diazepam

Drug and Dosage Use Action Assessment:Side Effects

Hydroxyzine pamoate (Vistaril)-PO 25-100 mg qid


See Chlordiazepoxide (Librium); antiemetic in postoperative conditions; adjunctive therapy


CNS relaxant with sedative effect on limbic system and thalamus


Drowsiness, headache, itching, dry mouth, tremor

ursing implications: Give deep IM only; potentiates action of warfarin (Coumadin), narcotics, and barbiturates

Drug and Dosage Use Action Assessment:Side Effects

Lorazepam (Ativan)-PO 1-2 mg bid-tid (up to 10 mg); 2-4 mg hs; IM 4 mg max; IV 2 mg max


Anxiety disorders; insomnia; alternative to diazepam for status epilepticus preanesthesia


See Diazepam


See Diazepam

nursing implications: See Diazepam

Drug and Dosage Use Action Assessment:Side Effects

Meprobamate (Equanil, Miltown)-PO 400 mg tid-qid


Anxiety; stress; absence seizures


See Hydroxyzine pamoate (Vistaril)


Voracious appetite, dryness of mouth, ataxia

nursing implications: Older patients prone to drowsiness and hypotension; observe for jaundice

Drug and Dosage Use Action Assessment:Side Effects

Midazolam (Versed)-IM 0.05-0.08 mg/kg; IV 0.1-0.15 mg/kg


Preanesthesia; prediagnostic procedures; induction of general anesthesia


Penetrates blood-brain barrier to produce sedation and amnesia


Respiratory depression, apnea, disorientalion, behavioral excitement

nursing implications: Monitor ventilatory status and oxygenation; prevent injuries from CNS depression; nonirritating to vein

Drug and Dosage Use Action Assessment:Side Effects

Phenobarbital-sedative, PO 20-30 mg tid; hypnotic, PO 50-100 mg; IV or IM 100-300 mg; butabarbital (Butisol), pentobarbital (Nembutal), secobarbital (Seconal)


Preoperative sedation; emergency control of convulsions; absence seizures


Depresses CNS, promoting drowsiness


Cough, hiccups, restlessness, pain, hangover; CNS and circulatory depression

nursing implications: Observe for hypotension during IV administration; put up side rails on bed of older patients; observe for increased tolerance

Drug and Dosage Use Action Assessment:Side Effects

Promethazine (Phenergan)-IV, IM, PO 25-50 mg


Preoperative sedation; postoperative sedation


Antihistaminic; sedative, antiemetic, anti-motion sickness


Drowsiness; coma; hypotension, hypertension; leukopenia; photosensitivity; irregular respirations; blurred vision; urinary retention; dry mouth, nose, throat

nursing implications: Administer PO with food, milk; IM deep into large muscles, rotate sites; verify compatibility with other drugs; safety concerns due to sedative effect

Drug and Dosage Use Action Assessment:Side Effects

Serum


Immune globulin-IM 0.02 mL/kg


Hepatitis


Provides passive immunity


Do not use if patient is hypersensitive

nursing implications: Should be administered within 2 weeks of exposure

Drug and Dosage Use Action Assessment:Side Effects

Thyroid Hormone Inhibitors


Lugol's solution-PO 2-6 drops tid 10 days before thyroidectomy


To reduce size, vascularity of thyroid before thyroidsurgery; emergency treatment of thyroid storm; or control of hyperthyroid symptoms after radioiodine (131I) therapy


Inhibits thyroid hormone secretion, synthesis


GI distress; stained teeth; increased respiratory secretions; rashes, acne

nursing implications: Dilute in juice, give through straw; bloody diarrhea/vomiting indicates acute poisoning

Drug and Dosage Use Action Assessment:Side Effects

Propylthiouracil-PO 300-400 mg/day, divided initial dose; 100-150 mg/day maintenance dose; methimazole (Tapazole) 15-60 mg/day initial dose; 5-15 mg/day maintenance dose


Hyperthyroidism; return patient to euthyroid state; also used preoperatively


Inhibits functional thyriod hormone synthesis by blocking reactions; responsible for iodide conversion to iodine; inhibition of T4 conversion to T3


Blood dyscrasias, hepatotoxicity, hypothyroidism

nursing implications: Teach importance of compliance with medication protocol; avoid iodine-rich foods (seafood, iodized salt); caution when using other drugs

Drug and Dosage Use Action Assessment:Side Effects

Saturated potassium iodide See Lugol’s solution (SSKI)-300 mg tid-qid


See Lugol’s solution


See Lugol’s solution


See Lugol’s solution

nursing implications: See Lugol’s solution

Drug and Dosage Use Action Assessment:Side Effects

Thyroid Hormone Replacement


Levothyroxine (Levothroid, Synthroid)-PO 0.05-0.10 mg/day; IV 200-500 p.g


Hypothyroidism


Myxedema coma


Replacement therapy to alleviate symptoms


Emergency replacement therapy


Symptoms of hyperthyroidism

nursing implications: Teach signs and symptoms of hyperthyroidism, hypothyroidism; monitor bowel activity; teach diet to combat constipation; keep medication in tight light-proof container, avoid foods that inhibit thyroid secretion (turnips, cabbage, carrots, peaches, peas, strawberries, spinach, radishes)

Drug and Dosage Use Action Assessment:Side Effects

Liothyronine (Cytomel)-PO 25 ug/day to maintenance dose 25-75 ug


Mild hypothyroidism in adults


Replacement therapy


See Levothyroxine

nursing implications:

Drug and Dosage Use Action Assessment:Side Effects

Uterine Contractants


Ergonovine maleate (Ergotrate)-PO, IM, IV 0.2 mg (gr 1/320)


Postabortal or postpartum hemorrhage; promotes involution after delivery of placenta


Stimulates uterine contractions for 3 hours or more


Nausea, vomiting; occasional transient hypertension, especially if given IV; cramping

nursing implications: Store in cool place; monitor maternal BP and pulse; do not use in labor

Drug and Dosage Use Action Assessment:Side Effects

Methylergonovine maleate (Methergine)-PO 0.2 mg; IM, IV, 0.2 mg (gr 1/320)


Postpartum hemorrhage, after delivery of placenta


Stimulates stronger and longer contractions than ergonovine maleate (Ergotrate)


Nausea, vomiting, transient hypertension, dizziness, tachycardia; cramping

nursing implications: Do not give if mother is hypertensive; do not use if solution is discolored; do not use in labor

Drug and Dosage Use Action Assessment:Side Effects

Oxytocin (Pitocin, Syntocinon) IM 0.3 1.0 mL; IV 1 mL (10 U) in 1000 mL solution


Stimulates rhythmic contractions of uterus


Induces labor; augments contractions; prevents or controls postpartum atony; antidiuretic effect


Tetanic contractions, uterine rupture, cardiac arrhythmias FHR deceleration

nursing implications: Contraindicated if cervix is unripe, in CPD, abruptio placentae, and cardiovascular disease; monitor: FHR, contractions, maternal BP, pulse, l&O; watch for signs of water intoxication with prolonged IV use; drug of choice in presence of hypertension; never use undiluted; DC if tetanic contractions occur; antidote: propranolol

Drug and Dosage Use Action Assessment:Side Effects

Volume Expander


Albumin-IV 5%, 25% 500 mL as needed


Cirrhosis


Provides colloidal oncotic pressure, which mobilizes fluid from extracellular back into intravascular space


Hypersensitivity, CHF, hepatic failure

nursing implications: Monitor progress of disease; monitor for signs of shock; if fever, tachycardia, or hypotension occur, stop treatment and call physician