Keywords: Methylnaltrexone.png en wikipedia 2011 August 29 i drew this anyone can use it en wikipedia Ronhjones CommonsHelper 2007-11-03 Meodipt wikipedia en Meodipt Original upload log page en wikipedia Methylnaltrexone png 2010-12-22 04 26 D Dinneen 500×484× 15817 bytes <nowiki>Improved version of file in line with other skeletal structures on Wikipedia Created by modifying exisiting Wikipedia image of Naltrexone </nowiki> 2007-11-03 05 18 Meodipt 236×307× 4668 bytes <nowiki>i drew this anyone can use it </nowiki> Tertiary alcohols Ketones Morphinans Opioid antagonists Phenols |