Irbesartan Hydrochlorothiazide Tablets generally maintain their antihypertensive effect for 24 hours and need to be used as prescribed. Irbesartan Hydrochlorothiazide Tablets is a combination of Irbesartan and Hydrochlorothiazide. It has the synergistic effect of lowering blood pressure. It can be used for the treatment of essential hypertension, for those whose blood pressure cannot be effectively controlled by hydrochlorothiazide alone or irbesartan alone. The instructions state that the blood pressure-lowering effect of this product can be maintained for 24 hours. Adverse reactions such as dizziness, nausea, vomiting, abnormal urination, fatigue, increased urea nitrogen and creatinine, and increased creatine kinase have been seen with Irbesartan Hydrochlorothiazide Tablets. This product is contraindicated in the 4th to 9th month of pregnancy, breastfeeding, hypersensitivity to the product, allergy to other sulfonamide derivatives, anuric patients, severe hepatic and renal impairment. The drug is a prescription drug and should be used appropriately under the supervision of a doctor.