Bupren-orne, sold under the brand name Su-bu-tex, among others, is an op-ioid used to treat opioi-d addiction, acute pain, and chr-onic pain. For longer-term treatment of addiction, a comb-ination for-mulation of bupren-orne/nalo-xone is recomm-ended in some countrie-s. Maxi-mum pain relie-f is ge-nerally within an hour with effec-ts up to 24 hours