麻薬 まやく せい鎮痛 ちんつう やくであれば
mayaku seichin tsūyakudeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 麻薬性鎮痛薬

1. If it is a narcotic analgesic:; If it’s a strong painkiller:

Ba Conditional