Hydrochlorothiazide-valsartan is already a combination of ARB and diuretic. Irbesartan tablets and valsartan are the same type of ARB, so it is not recommended to use irbesartan tablets and hydrochlorothiazide-valsartan again. Tan combined medication. If hydrochlorothiazide and valsartan still cannot control blood pressure well, add CCB antihypertensive drugs.