ペンタゾシンMeanings1nounpentazocineA synthetic opioid analgesic used for moderate to severe pain; primarily a medical term.ペンタゾシンは麻ま薬やく性せい鎮ちん痛つう薬やくの一いっ種しゅです。Pentazocine is a type of narcotic analgesic.