Irbesartan 75mg half a tablet a day can control blood pressure is possible, patients with hypertension should adjust the dose of the drug according to the level of blood pressure, the specific dosage should be in accordance with the doctor’s instructions. Irbesartan mainly acts on angiotensin II, can reduce the generation of angiotensin in the body, has the effect of dilating peripheral blood vessels, the main indication is the treatment of hypertension. Irbesartan treatment of hypertension should start with a small dose, taking 75mg once a day, if the blood pressure level is low, you can halve the dose of the drug, and at the same time, pay attention to strengthen the monitoring of blood pressure, to avoid the blood pressure level is too low, so as not to lead to insufficient blood supply to the brain. Adverse effects of Irbesartan include dizziness, headache, elevated blood potassium, postural hypotension, etc. Irbesartan is contraindicated in allergy to the components of Irbesartan medication, in mid- to late-pregnancy, and in lactating women.