a drug with 'analgesic' [='painkilling'] effects
a mild/powerful 'analgesic' [='painkiller']
an 'analgesic' drug
(..) This isn't part of my programme. I'm a doctor. Do a dance, tell a story, just give us a few seconds. According to medical research, Borg implants can cause skin irritations. Perhaps you'd like an analgesic cream. Which way? We need to get off this deck. Follow me. (..)1996 Star Trek: First Contact