Contraindicated in:
Use Cautiously in:
CV: peripheral edema, HF, ARRHYTHMIAS, bradycardia, chest pain, hypotension, palpitations, syncope, tachycardia.
Derm: dermatitis, erythema multiforme, flushing, photosensitivity, pruritus/urticaria, rash, STEVENS-JOHNSON SYNDROME, sweating.
EENT: blurred vision, disturbed equilibrium, epistaxis, tinnitus.
Endo: gynecomastia, hyperglycemia.
GI: ↑liver enzymes, anorexia, constipation, diarrhea, dry mouth, dyspepsia, nausea, vomiting.
GU: dysuria, nocturia, polyuria, sexual dysfunction, urinary frequency.
Hemat: anemia, leukopenia, thrombocytopenia.
Metab: ↑weight.
MS: joint stiffness, muscle cramps.
Neuro: abnormal dreams, anxiety, confusion, dizziness, drowsiness, dysgeusia, headache, nervousness, paresthesia, psychiatric disturbances, tremor, weakness.
Resp: cough, dyspnea.
Misc: gingival hyperplasia.
Drug-Drug:
Drug-Food:
Therapeutic Classification: antianginals, antihypertensives
Pharmacologic Classification: calcium channel blockers
Absorption: Well absorbed following oral administration but extensively metabolized, resulting in ↓ bioavailability.
Distribution: Unknown.
Protein Binding: 95%.
Metabolism/Excretion: Completely metabolized by the liver.
Half-life: 8 hr.
(antihypertensive effects)
ROUTE | ONSET | PEAK | DURATION |
---|---|---|---|
PO | <2 hr | 23 hr | 12 hr |
For single doses, maximal antihypertensive effect during chronic dosing may take 24 wk.
NDC Code*