The composition of Shihuida antihypertensive drug is mainly amlodipine, a calcium channel blocker, which is a first-line long-acting antihypertensive drug, this kind of antihypertensive drug can be used in patients with heart failure, and it is relatively speaking, there is no negative inotropic calcium channel blocker. In addition, it helps to inhibit platelet aggregation, preventing the progression of atherosclerosis, and has some lipid-lowering effects. If the blood pressure cannot be controlled by this drug alone, it is recommended to combine it with Prilosec or sartan drugs, which will have more significant antihypertensive effect. The representative drugs of Priligy are Fosinopril and Perindopril; the representative drugs of Sartan are Irbesartan and Cloxartan. Some patients may experience rapid heartbeat, gum enlargement, and ankle edema when taking amlodipine, but most of the adverse effects can be gradually recovered after stopping the drug.