4,4'-diacetoxy-diphenyl- ( pyridyl-2 ) -methan ( bisacodyl , dulcolax , 12 -- 240 mug/ml ) was shown to initiate dose-dependently contracile responses in the guinea pig isolated terminal ileum and taenia coli ( a preparation of pure longitudinal muscle fibers ) .
C0005632
bisacodyl
C0591416
dulcolax