甲の薬は乙の毒 こうのくすりはおつのどく Meanings Expression one man's meat is another man's poison (literally: one man's medicine is another man's poison) Kanji 甲 armor. Read as コウ. 薬 drug. Read as くすり. 乙 latter. Read as オツ. 毒 poison. Read as ドク. Word lists Proverbs Jinuma: Japanese Dictionary · Word lists