[Biological availability of spironolactone in two different galenic forms (author's transl)].

The biological availability of spironolactone in two different galenic preparations (Spiro-Tablinen and Aldactone-100 Caps) was investigated in a single-blind, randomised, cross-over study in six healthy probands. The serum concentration of canrenone after oral intake of spironolactone (100 mg) was investigated in the steady state as well as the renal excretion of canrenone. There were no statistically significant differences between the two preparations either in the course of the serum concentration of canrenone or in the cumulative renal excretion.