[Enalapril in essential arterial hypertension].

The hypotensive effect of enalapril, a converting enzyme inhibitor, given as a single agent once daily, was evaluated prospectively over a 16 week period in 20 subjects. One patient abandoned therapy and 2 were withdrawn (increased creatinine levels in one and the need for associated therapy in the other). Side effects developed in 3 patients: creatinine elevation, skin rush and a "salty taste", respectively. A significant decrease in blood pressure (p less than 0.01) attaining normal levels in 6 out of 17 patients was observed. Normal blood pressure levels were not reached in severe hypertension; the association of hydrochlorothyazide was effective in 5 of 11 such subjects. Thus, enalapril may be safely used as a first stage single therapy in mild or moderate hypertension.