[Comparative evaluation of the effectiveness of diuretics].

The study was conducted in 118 patients with cardiac and pulmonary lesions, aged 18 to 75 years. Among the diuretics the leading role belongs to Uregyt, and Lasix, as judged by their natriuretic and diuretic action, then follow Nuvorit, Hypothiaside and Brinaldix. Renese (polythiaside) produces the same diuretic effect as Nuvorit and Hypothiaside. Renese, Hypothiaside, Lasix and Uregyt enhance kaliuresis and often reduce potassium blood plasma concentrations, while Nuvorit and Brinaldix increase kaliuresis least of all, and often increase the potassium blood plasma level. Within two days of discontinuing Thriamterene nearly all body potassium that was retained under the effect of this drug is excreted. Nuvorit, Hypothiaside, Renese, Brinaldix, Lasix, Uregyt cause similar changes in the acid-base balance (respiratory and metabolic alkalosis), and produce no effect upon the acid-base balance rather seldom. Lasix and Uregyt cause metabolic alkalosis more often than other diuretics. Apart from that, Hypothiaside also causes respiratory acidosis in 1/4 of the patients.