Alisatan ester has the efficacy of lowering blood pressure; side effects include increased heart rate and nausea. Alisatan ester tablets belong to the angiotensin II receptor antagonist class of drugs, with the efficacy of lowering blood pressure, mainly through the inhibition of angiotensin II and the binding of the receptor, vasodilating the blood vessels so as to achieve the purpose of lowering blood pressure. Alisatan ester tablets are clinically used in the treatment of mild and moderate essential hypertension. Side effects include cardiovascular system such as increased heart rate, palpitations (rapid heartbeat, often accompanied by panic), and digestive system such as nausea, stomach upset and stomach pain. Patients may also experience side effects such as dizziness, head swelling, nasal congestion, cough, and menstrual cramps; it is contraindicated in those who are allergic to any of the ingredients in the product; and it is contraindicated in the middle and end stages of pregnancy and during breastfeeding. In addition, it should be noted that, for elderly patients with severe hepatic and renal function, cardiac decompensation, the dose of the drug can be reduced as appropriate; food may reduce the absorption of the drug, it is not recommended to take the same dose; for patients with severe sodium deficiency and hypovolemia, the use of this product should be corrected before the use of hyponatremia or hypovolemia; during the period of administration of the drug should be avoided driving, high-altitude work and the operation of precision machinery. The above content is for reference only, patients who need to use alisatan ester tablets, please under the guidance of a professional doctor reasonable use of medication.