Information about Nifedipine
Nifedipine is a first generation calcium channel blocker used to treat hypertension and angina pectoris.
Liver safety of Nifedipine
Nifedipine therapy is associated with a low rate of serum enzyme elevations and has been linked to several instances of clinically apparent acute liver injury.
Mechanism of action of Nifedipine
Nifedipine (nye fed' i peen) belongs to the dihydropyridine class of calcium channel blockers (first in its class and similar to amlodipine, felodipine and nicardipine) and is used for the treatment of hypertension and angina pectoris. Like other calcium channel blockers, nifedipine acts by inhibiting the transmembrane influx of calcium into cardiac and smooth muscle cells during depolarization. The inhibition of calcium influx causes arterial vasodilation and decreases cardiac work and oxygen consumption.
FDA approval information for Nifedipine
Nifedipine was approved in the United States in 1982 and currently several million prescriptions are filled yearly. Current indications include hypertension and chronic stable and Prinzmetal's variant angina pectoris. It is also used off label to treat Raynaud phenomenon.
Dosage and administration for Nifedipine
Nifedipine is available in capsules of 10 and 20 mg and as extended release tablets of 30, 60 and 90 mg in several generic formulations as well as under brand names including Procardia, Adala, Afeditab, Nifediac, and Nifedical. The typical dose in adults is 30 to 60 mg daily, usually starting with lower doses.
Side effects of Nifedipine
Nifedipine is generally well tolerated and side effects are largely due to its vasodilating activities and can include dizziness, flushing, headache, fatigue, nausea, diarrhea, palpitations, bradycardia, peripheral edema and skin rash.
- amlodipine, diltiazem, felodipine, isradipine, nicardipine, nifedipine, nimodipine, nisoldipine, verapamil