The statement of who is better, olmesartan ester tablets or candesartan, is unscientific, drugs are usually not good or bad, patients can use the correct medication under the guidance of the doctor. Olmesartan ester tablets, the main ingredient of which is olmesartan ester, can be used as a first-line, long-acting antihypertensive drug for the treatment of hypertension. A small number of patients may experience mild and transient adverse reactions such as back pain, diarrhea, elevated creatine phosphokinase, headache, hematuria, and flu-like symptoms after taking olmesartan ester tablets, and patients who are allergic to the ingredients of olmesartan ester tablets should be prohibited from taking this drug. The main ingredient of candesartan is candesartan ester, which is an angiotensin II antagonist drug used in the treatment of essential hypertension, a few patients may experience adverse reactions such as dizziness, rash, headache, headache, insomnia, somnolence, creatinine elevation, etc., and this drug should be contraindicated in patients who are allergic to the ingredients of candesartan, or in the presence of severe hepatic or renal insufficiency, and cholestasis. Candesartan ester tablets and olmesartan ester tablets are two different drugs, its drug composition, side effects, etc., these two drugs usually do not have good or bad, it is recommended that patients strictly follow the doctor’s instructions for medication, do not change the dose of the drug without authorization or abuse of drugs, pay attention to observe the reaction of the drug in life, if there is any abnormality, timely medical attention.