The composition of our Fuda is nifedipine extended-release tablets, long-term oral nifedipine extended-release tablets function is to control blood pressure to improve the blood supply to the myocardium, adverse reactions include lower limb edema, dry stools, tachycardia and so on. The role of nifedipine extended-release tablets is to dilate blood vessels, peripheral arteries and coronary arteries have a dilating effect, the main clinical indications are hypertension, suitable for patients with mild to moderate hypertension, due to the ability to dilate the coronary arteries, but also can be used for angina pectoris patients treatment. Nifedipine’s adverse reactions include lower limb edema, which may be related to vasodilatation, and some patients will experience adverse reactions such as dry stools, tachycardia, facial redness, etc. It is contraindicated in patients who are allergic to the drug components, have severe hypotension, or have severe aortic valve stenosis.