[Availability of propylphenazone from suppositories. 2. Bioavailability]

The examination of the bioavailability from 4 different preparations of propyphenazone suppositories on a fatty base, studied in 10 healthy volunteers, showed bioequivalence as was judged by means of the AUC-values. Aminophenazone suppositories of an equivalent dosage led to significant higher values of plasma concentrations if compared with propyphenazone. The in vivo findings correlate with in vitro results of availability.