Title: Metabolism of two analgesic agents, tramadol-n-oxide and tramadol, in specific pathogen-free and axenic mice.
Journal: Xenobiotica; the fate of foreign compounds in biological systems 20060601
Title: In vitro metabolism of the analgesic agent, tramadol-N-oxide, in mouse, rat, and human.
Journal: European journal of drug metabolism and pharmacokinetics 20020101