DrugDigest: Tramadol ( Ultram ): Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available.MEDLINEplus Drug Information: Tramadol: Indications, precautions, and possible side effects.Spine-Health: Information on use of Ultram (tramadol) in the treatment of back pain. Includes drug interaction, pregnancy risk and tolerance.Tramadol: Information from the RxList.Ultracet: Combines tramadol hydrochloride and acetaminophen. Information on pain management through diet, exercise, therapies.Ultracet: Full prescribing information from RxList.Ultram: Offers a FAQs and prescribing information.