Tramadol is an analgesic (pain reliever) that acts in the same way that to opiates do(hydrocodone, codeine). However, it is not a controlled substance such as other opiates. It is commonly found in a 50 mg tablet under the name Ultram or under the name Ultracet, which has 37.5 mg of tramadol and 325 mg of tylenol. I have had personal experience with this product in the past for pain, and it works great. It is a great alternative to Vicodin or other opiates because it provides adequate relief of pain without the drowsiness/euphoria, which can be annoying in the gym. It also lasts longer than most opiates, approximately 6 hours or more. DO NOT TAKE THIS PRODUCT WITH EPHEDRA, CLENBUTEROL, OR ANY OTHER PRODUCT THAT CAUSES THE RELEASE OF NOREPINEPHRINE. Tramadol causes the release of norepinephrine and seritonin in the brain and other tissues within the body, and in combonation with other drugs that do the same, the side effects are very harsh and could potentially be harmful. The normal dose is 50 mg to 100 mg every 6 hours as needed for pain. If you are sensitve to hydrocodone or codeine, or get the "itches" like i do, start out with 50 mg and it should do the trick for your pain, if that is what you are using it for....
Not exactly what you asked for, but some helpful info.
I was prescribed tramadol and I can honestly say at the right dose the pain relief and euphoria CAN rival NARCOTIC painkillers. Just listen to motiv8er and don't mix it with ephedra, clen (probably amp) etc.
During my knee problems tramadol did me pretty well but just b/c it's not scheduled does not mean it don't have bad potential.
From my knowledge tram stimulates seratonin recepters so be careful. JMO