Changes of electrolyte excretion, renin activity, angiotensin-II and aldosterone concentrations during administration of 3-amino-1-(3,4-dichloro-a-methyl-benzyl)-2-pyrazolin-5-one (Bay g 2821).

Abstract

After the administration of 40 mg Bay g 2821, a new potent diuretic substance, a significant increase of sodium and water diuresis occurred. There was only a short rise in potassium excretion. In contrast to the sodium and water diuresis no significant increase of renin-activity, angiotensin-II or aldosterone concentration was seen. In spite of the insignificant stimulation of the renin-angiotensin-aldosterone system, a significant increase of correlation occurred between the three components of the renin-angiotensin-aldosterone system.