The analgesic activity of tramadol hydrochloride is due to the two mum or dad drug as well as the M1 metabolite (seeCLINICAL PHARMACOLOGY, Pharmacodynamics). Tramadol is administered for a racemate and both the [-] and [+] varieties of equally tramadol and M1 are detected in the circulation. Tramadol is well absorbed orally by having an absolute bi