Buprenorphine is a Schedule 3 controlled drug used for the relief of moderate pain. It is licensed for veterinary used and may be given i/v, i/m, s/c or p/o. Its actions last 6-8 hours. | Buprenorphine is a Schedule 3 controlled drug used for the relief of moderate pain. It is licensed for veterinary used and may be given i/v, i/m, s/c or p/o. Its actions last 6-8 hours. |