Bioavailability of two preparations of frusemide.

This study examined the relative diuretic effectiveness of batches of 40 mg tablets of the Frusid and Lasix formulations of frusemide in health volunteers. There were no significant differences in the urinary volume or urinary contents of Na+, K+ and Cl- following the oral administration of either preparation. It is concluded therefore that the batches studied had equivalent bioavailability.