The disposition of tacrolimus and the influence of cyclosporine, troleandomycin, and GF120918 (GG918, or N-[4-[2-(1,2,3,4tetrahydro-6,7-dimethoxy-2-isoquinolinyl)-ethyl]-phenyl]-9,10dihydro-5-methoxy-9-oxo-4-acridine carboxamine) on its hepatic disposition were examined in the isolated perfused rat liver. Livers from groups of rats were perfused in a recirculatory manner following a bolus dose ...