Nifedipine Generic Tablets can be taken sublingually. Nifedipine is a dihydropyridine calcium channel blocker that dilates peripheral arteries, lowers blood pressure, and dilates coronary arteries in the treatment of angina pectoris. Sublingual nifedipine tablets can quickly lower blood pressure and dilate coronary arteries to relieve angina pectoris, but because nifedipine tablets are short-acting calcium antagonists, they can cause significant reflex sympathetic cardiac elevation, and long-term use can lead to an increase in cardiovascular events, so sublingual nifedipine tablets are not recommended, nor is long-term oral nifedipine tablets recommended to lower blood pressure or treat angina pectoris. or for the treatment of angina pectoris. Nifedipine extended-release tablets or controlled-release tablets are currently used orally for the treatment of hypertension and control of angina pectoris episodes.