出典:Wikipedia
出典:『Wikipedia』 (2011/07/30 06:58 UTC 版)
Tramadol hydrochloride (Ultram, Tramal) is a centrally acting opioid analgesic, used in treating moderate to severe pain. The drug has a wide range of applications, including treatment for restless leg syndrome and fibromyalgia. It was developed by the pharmaceutical company Grünenthal GmbH in the late 1970s.