Olmesartan is olmesartan ester tablets, timosartan is timosartan tablets, there is no which one is more effective. Both belong to the angiotensin II receptor antagonist, belong to the same kind of antihypertensive effect of the drug. They should not be used by pregnant women, lactating women and patients with drug allergies. Olmesartan tablets are angiotensin II receptor antagonists and are used to treat high blood pressure. Telmisartan Tablets also belong to the angiotensin II receptor antagonist, used in the treatment of essential hypertension. Olmesartan ester tablets and timosartan tablets belong to a type of antihypertensive drugs and have the same effect, so there is no argument about which drug is more effective. When using the drug, patients should pay attention to the fact that pregnant women as well as lactating women should not use olmesartan ester tablets and timosartan tablets, so as not to cause adverse effects on the development of the fetus and the baby. Patients who are allergic to the drug should not use it to prevent allergic symptoms such as shock, generalized rash and respiratory distress. Olmesartan ester tablets and timosartan tablets have the same effect, and there is no claim of better effect. It is recommended that patients follow the doctor’s instructions to use the drug, and should not use the drug blindly.