Irbesartan is usually interchangeable with valsartan, but you need to change the drug under the guidance of your doctor to avoid medication risks. Irbesartan and valsartan belong to the angiotensin II receptor antagonist, can be blocked by angiotensin II and receptor binding, thus inhibiting vasoconstriction caused by the rise in blood pressure, the two are the same type of antihypertensive drugs, antihypertensive effect is basically the same, and there is no great difference between the advantages and disadvantages, so it is possible to replace each other. If the patient wants to change the drug, it is recommended to change the drug by the doctor according to the guidance of their own condition, do not change the drug treatment at will. After taking the drug may have dizziness, fatigue and other symptoms, if there is serious discomfort, should consult a doctor in time. In addition, allergic to drug ingredients, pregnant and lactating women are prohibited to use. Patients with high blood pressure should eat a light diet, do not eat too greasy and high fat food, but also more exercise to improve the quality of the body, daily blood pressure monitoring, regular review.