特効薬 とっこうやく Meanings Noun specific medicine; wonder drug; silver bullet Kanji 特 special. Read as トク. 効 effect. Read as コウ. 薬 drug. Read as ヤク. Example sentences 笑顔ってね、機嫌をなおす特効薬なのよ。A smile is the best cure for a bad mood. Jinuma: Japanese Dictionary · Word lists