RT Journal Article SR Electronic T1 Metabolism of aminoglutethimide in the rat. JF Drug Metabolism and Disposition JO Drug Metab Dispos FD American Society for Pharmacology and Experimental Therapeutics SP 405 OP 412 VO 10 IS 4 A1 H Egger A1 F Bartlett A1 W Itterly A1 R Rodebaugh A1 C Shimanskas YR 1982 UL http://dmd.aspetjournals.org/content/10/4/405.abstract AB The metabolism of aminoglutethimide was studied in the rat by use of the 14C-labeled compound. Following oral doses of 5 and 50 mg/kg, the drug was almost completely eliminated within 48 hr into urine and feces, mostly in the form of metabolites. In bile duct-cannulated rats, biliary excretion of radioactivity amounted to about 52% within 24 hr of an orally administered 50 mg/kg dose, with the remainder of the dose being eliminated into urine. The major urinary metabolites resulted from acetylation of the aniline moiety, hydroxylation of the glutarimide ring at positions 3 and 4, and oxidative elimination of the ethyl sidechain. The polar metabolites are accounted for by aromatic hydroxylation with subsequent sulfate conjugation and by a glutarimide ring-opened compound. In addition, a gamma-butyrolactone derivative was also identified.