Diovan Valsartan Oral Your doctor or pharmacist will know what medicines are safe to take together. Talk to your doctor about other ways to lower your blood pressure if you plan to become pregnant. If you get pregnant while taking DIOVAN, tell your doctor right away. A conservative estimate of the effect of captopril was a 14% to 16% reduction in mortality compared to placebo. Valsartan would be considered effective cheap valsartan if it preserved a meaningful fraction of that effect and unequivocally preserved some of that effect. The other secondary endpoints were consistent with this conclusion. No clinically significant pharmacokinetic interactions were observed when Diovan was coadministered with amlodipine, atenolol, cimetidine, digoxin, furosemide, glyburide, hydrochlorothiazide, or indomethacin.