麻薬 まやく せい鎮痛 ちんつう やくなら
mayaku seichin tsūyakunara

Noun
Da Copula

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

1. If/when it's a narcotic analgesic:; If/when it’s an opioid painkiller:

Nara Conditional