Nifedipine controlled release tablets is a kind of calcium antagonist, it is to be the indications for: the first is high blood pressure, the second is coronary heart disease, chronic stable angina pectoris, also known as exertional angina. Nifedipine controlled-release tablets are normally used once a day, one tablet at a time. Adverse reactions of nifedipine controlled release tablets mainly include dizziness, headache, flushing, swelling of the lower limbs and so on. Contraindications of nifedipine controlled release tablets, people who are allergic to nifedipine can not be used, cardiogenic shock, pregnancy within 20 weeks and lactating women are prohibited, at the same time, due to the enzyme-inducing effect of rifampicin and rifampicin combined, nifedipine can not reach the effective blood concentration, and therefore should not be used in combination with rifampicin, and nifedipine at the same time prohibited in the rectal colon resection of the patients with ileostomies after the resection of recto-colon.