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