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- Title
Valsartan/hydrochlorothiazide: a review of its pharmacology, therapeutic efficacy and place in the management of hypertension.
- Authors
Wellington, Keri; Faulds, Diana M
- Abstract
The combination of valsartan [an angiotensin II type 1 (AT(1)) receptor blocker] and hydrochlorothiazide (a thiazide diuretic), administered once daily, has been evaluated in the treatment of patients with hypertension in clinical trials ranging in duration from 8 weeks to 3 years. These studies showed that combination treatment with valsartan 80 or 160mg and hydrochlorothiazide 12.5 or 25mg induced significant reductions from baseline in systolic blood pressure (SBP) and diastolic BP (DBP) in patients with mild to severe hypertension. Clinical trials have demonstrated that the combination of valsartan 80 or 160mg with hydrochlorothiazide 12.5 or 25mg is significantly more effective than either drug alone. Furthermore, valsartan plus hydrochlorothiazide was effective at reducing BP in patients unresponsive to monotherapy with either agent alone. Effective BP control with valsartan plus hydrochlorothiazide was maintained in long-term studies, with reductions observed after 3 months of treatment being similar to those seen after 1, 2 or 3 years. Fixed-dose valsartan/hydrochlorothiazide showed similar BP reductions to amlodipine and to valsartan plus benazepril. Valsartan/hydrochlorothiazide also provided effective 24-hour ambulatory SBP/DBP control. Headache, dizziness and fatigue were the most common adverse events occurring in clinical trials; the incidence of these events in valsartan plus hydrochlorothiazide recipients was not significantly different to that in placebo recipients. Hypokalaemia occurred in 4.5% of valsartan plus hydrochlorothiazide recipients; valsartan attenuated the hydrochlorothiazide-associated decrease in serum potassium concentrations.
- Publication
Drugs, 2002, Vol 62, Issue 13, p1983
- ISSN
0012-6667
- Publication type
Journal Article
- DOI
10.2165/00003495-200262130-00015