The initial dose of Irbesartan tablets starts with 0.15 grams, taken once a day. This can be increased to 0.2 grams, also once a day, depending on the condition. It can be used alone or in combination with other anti-hypertensive drugs. If the blood pressure condition is particularly severe and the blood pressure is still not satisfactorily controlled after the drug is increased, a small dose of diuretics, such as hydrochlorothiazide, or other classes of antihypertensive drugs can be added. At the time of medication, blood volume deficiency or sodium deficiency should be corrected before treatment. In people with renal insufficiency, reduce the dose of this product and pay attention to the changes of serum creatinine and potassium. Irbesartan cannot be excreted by hemodialysis. Common adverse reactions include headache, dizziness, palpitations, and occasional cough.