A calcium channel blocker drug used to prevent angina and to treat hypertension. Possible side effects are headaches and dizziness.
n. a *calcium-channel blocker used to treat hypertension and prevent angina pectoris. Possible side-effects include headache, dizziness, fatigue, nausea, and fluid retention.
(calcium antagonist) a drug that inhibits the influx of calcium ions into cardiac and smooth-muscle cells; it therefore reduces the strength of heart-muscle contraction, reduces conduction of impulses in the heart, and causes *vasodilatation. Calcium-channel blockers, which include *amlodipine, *diltiazem, *nicardipine, *nifedipine, and *verapamil, are used to treat angina and high blood pressure.... calcium-channel blocker