ごうせいまやく 合成麻薬 LinksSentence search for 合成麻薬Sentence search for ごうせいまやくKanji details for 合, 成, 麻 and 薬Edit in JMdict Noun1. synthetic drug; synthetic narcotic; designer drugSee also デザイナードラッグ Discussions Log in to talk about this word.