There is no which one is better, Olmesartan ester tablets or Valsartan, and it needs to be used according to the patient’s condition and under the guidance of the doctor. Valsartan is commonly used in the form of tablets, capsules and so on. Olmesartan ester tablets and valsartan both belong to the angiotensin II receptor antagonist class of drugs, mainly used in the treatment of hypertension, can constrict blood vessels, promote the synthesis and release of aldosterone, stimulate the heart as well as to promote the reabsorption of sodium in the kidneys. Some patients may experience adverse reactions such as back pain, bronchitis, diarrhea, headache, cough, and myalgia when using olmesartan ester tablets, which are contraindicated for those who are allergic to the ingredients contained in the drug, and should not be used in conjunction with aliskiren in diabetic patients. Some patients may experience edema, weakness, rash, headache and other symptoms when taking valsartan, which is prohibited for those who are allergic to the drug, lactating women and those who are pregnant. It is recommended that patients under the guidance of a doctor, strictly comply with the medical prescription of medication, not blindly use the drug, if the symptoms continue to develop, you need to go to the hospital in a timely manner, under the diagnosis of the doctor, targeted treatment.