出典:Wiktionary
出典:『Wiktionary』 (2010/06/11 12:40 UTC 版)
metopon (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/01 03:58 UTC 版)
Metopon (5-methylhydromorphone) is an opiate analogue that is a methylated derivative of hydromorphone which was invented in 1948 as an analgesic.