Summary
The antihypertensive activity and side effects of three doses of hydrochlorothiazide combined with a potassium supplement (Esidrex®-K novum, Ciba) were determined in 40 hypertensive subjects in a double-blind, cross-over study. The lowest daily dose (12.5 mg) gave almost the same blood pressure reduction as the doses in common use (25 mg and 50 mg) and as the adrenergic beta-blocking agents previously employed. Metabolic side effects in the form of decreased serum potassium and increased fasting blood sugar and serum uric acid were observed in patients on the lower dose and, with the exception of serum uric acid, were only slightly more pronounced with the higher doses. The frequency of subjective side effects, on the other hand, increased with increasing dose. No changes were noted in total body potassium at any dose level. It is suggested that hydrochlorothiazide in low dose, alone or in combination with other antihypertensive agents, is a useful therapeutic regimen in mild hypertension.
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Berglund, G., Andersson, O. Low doses of hydrochlorothiazide in hypertension. Eur J Clin Pharmacol 10, 177–182 (1976). https://doi.org/10.1007/BF00558326
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DOI: https://doi.org/10.1007/BF00558326