Alisatan generally refers to alisatan ester tablets, alisatan ester tablets and amlodipine tablets do not exist which one is better, the patient has to choose the most suitable for his own taking under the guidance of the doctor. Alisatan ester tablets and amlodipine tablets are both drugs for the treatment of essential hypertension, but the mechanism of action of the two is different. Alisatan ester tablets are angiotensin II receptor antagonists, which dilate blood vessels and reduce blood pressure by inhibiting angiotensin II. While amlodipine tablets are calcium antagonists, which reduce blood pressure by relaxing vascular smooth muscle. Patients should choose the one that suits them under the guidance of the doctor, different people have different sensitivity to drugs, and the effect of using drugs will also have some differences, therefore, the most suitable for themselves is the best. Taking Alisatanate Tablets may have adverse reactions such as fever, fatigue, rapid heart rate, etc. It is forbidden for those who are allergic to the drug, and for women in the middle and end stages of pregnancy and lactation; flushing, fatigue, indigestion, etc. may occur after taking Amlodipine Tablets, and it is forbidden for those who are allergic to the drug. It is recommended that patients consult a doctor in time when the adverse reactions are serious or when the effect of the drug is inaccurate.