2007年2月16日 (五) 22:24的版本编辑 ST47（留言 \| 贡献） 3,455次编辑小 robot Adding: et:Dekstrometorfaan ←上一版本		2007年3月1日 (四) 00:58的版本编辑撤销 Xwdl（留言 \| 贡献） 127次编辑小内容扩充下一版本→
第4行： == 化學 == ~~Dextromethorphan~~右美沙芬 is a [[salt]] of the methyl ether [[dextrorotatory]] [[isomer]] of levorphanol, a [[opioid\|narcotic]] [[analgesic]]. ~~It is chemically named as~~ 它的化学命名是''3-methoxy-17-methyl-9(alpha), 13(alpha), 14(alpha)-morphinan hydrobromide monohydrate''. ~~DXM occurs as white~~ 右美沙芬为白色[[~~crystals~~晶体]], ~~is sparingly soluble in water~~微溶于水, ~~and freely soluble in~~ 易溶于[[~~ethanol~~酒精\|~~alcohol~~乙醇]]. The drug is [[dextrorotation\|dextrorotatory]] in water (at 20 degrees [[Celsius]], Sodium D-line) with a specific rotation of +27.6 degrees. Dextromethorphan is metabolized by various liver [[enzyme]]s and subsequently undergoes O-demethylation, N-demethylation, and partial conjugation with glucuronic acid and sulfate ions. Hours after dextromethorphan therapy, (in humans) the metabolites (+)-3-hydroxy-N-methylmorphinan, (+)-3-morphinan, and traces of the unchanged drug are detectable in the [[urine]].

右美沙芬：修订间差异