Valsartan Hydrochlorothiazide Tablets can usually be taken for a long time if blood pressure is well controlled during use and side effects are not obvious. Valsartan Hydrochlorothiazide Tablets is a combination drug consisting of valsartan, an angiotensin II receptor antagonist, and hydrochlorothiazide, a diuretic, which work synergistically to control mild to moderate essential hypertension. Common adverse effects of the drug can cause elevated serum urea nitrogen levels, as well as nasopharyngitis, etc. Serious adverse effects may cause hepatitis, angle-closure glaucoma, renal impairment, and angioedema. Be sure not to take the drug blindly. Valsartan hydrochlorothiazide tablets must be taken under the guidance of a doctor.