[The dynamics of the drug release from tablets. Part 7: Comparison of three liberation models on Cholestil tablets (author's transl)].

The liberation of hymecromone from Cholestil tablets (0.2 g) has been determined by three procedures; half-change method, stationary-basket method, and rotating-basket method. The release rate was highest when determined by the rotating-basket method. The other two methods yielded comparable, but considerably lower values. Artificial gastric and intestinal juices according to the Polish Pharmacopoeia IV have been used in this study.