The generic name of Shihuida is Levamlodipine Benzenesulfonate Tablets, and there is a difference between taking 1 tablet and 2 tablets. Levamlodipine Benzenesulfonate is mainly used for the treatment of hypertension and angina pectoris, the specification of the drug is 2.5mg per tablet, used for the treatment of hypertension and angina pectoris, the general initial dosage of the drug is 1 tablet per day can be taken. However, if the patient’s condition is more serious, the doctor can adjust the dosage according to the patient’s clinical response, up to 2 tablets a day, i.e., 5mg daily dosage. Generally patients have a good degree of patience with levamlodipine benzenesulfonate tablets, and a small number of patients may experience adverse reactions such as headache, edema, nausea, insomnia and abdominal pain. In addition, patients who are allergic to dihydropyridine calcium antagonists are prohibited from using this product. It is important to note that whether to take 1 or 2 tablets should be based on medical advice. Patients with impaired hepatic or renal function should use the drug under the guidance of a physician, and should not use the drug without authorization.