amlodipine + nifedipine

Amlodipine + nifedipine is a combination of two dihydropyridine calcium channel blockers. Both drugs act by inhibiting L-type calcium channels in vascular smooth muscle, leading to vasodilation and reduced blood pressure. Amlodipine is a third-generation dihydropyridine with a long duration of action, while nifedipine is an earlier generation agent with rapid onset but shorter duration. Both are primarily indicated for the treatment of hypertension and angina pectoris. Their combined use would theoretically provide additive antihypertensive effects due to their similar mechanisms, though this specific combination is not standard clinical practice and may increase the risk of adverse effects such as hypotension or peripheral edema[1][2][9]. Both agents have also demonstrated pulmonary vasodilatory properties and potential benefit in conditions like pulmonary hypertension[2].