Antihypertensive drugs for pregnant women include labetalol and nifedipine. 1. Labetalol: has the advantage of lowering blood pressure without affecting the kidneys and placental blood flow, but also promotes the maturation of fetal lung development and inhibits platelet aggregation, which is beneficial to both the mother and the fetus, with rapid onset of action and no serious adverse effects, but should not be applied to pregnant women with bradycardia. 2. Nifedipine: calcium channel blocker, can relieve peripheral vasospasm in pregnant women, dilate blood vessels throughout the body, rapid antihypertensive effect, the use of the process has led to the risk of hypotension, should not be used in conjunction with magnesium sulfate. Clinical use of antihypertensive drugs for pregnant women, need to be under the guidance of a professional physician, in order to avoid improper application, resulting in adverse consequences.