SPL Set ID: 718756d7-0131-b173-6c45-5ee039b311b0

Buprenorphine and naloxone sublingual film, 2 mg/0.5 mg or 8 mg/2 mg are orange rectangular films, imprinted with "2" or "8" in blue ink as a strength identifier ("2" or "8" may appear to be green in color). It contains buprenorphine HCl, a mu-opioid receptor partial agonist, and a kappa-opioid receptor antagonist, and naloxone HCl dihydrate, an opioid antagonist, at a ratio of 4:1 (ratio of free bases). It is intended for sublingual or buccal administration and is available as 2 mg buprenorphine with 0.5 mg naloxone and 8 mg buprenorphine with 2 mg naloxone. Each film also contains acesulfame potassium salt, ammonium hydroxide, anhydrous citric acid, butylated hydroxyanisole, butylated hydroxytoluene, FD&C Blue No. 1, FD&C Yellow #6, lemon-lime flavor, maltitol, polyethylene oxide, povidone, shellac, and sodium phosphate dibasic anhydrous. Chemically, buprenorphine HCl is (2 S )-2-[17-Cyclopropylmethyl-4,5α-epoxy-3-hydroxy-6-methoxy-6α,14-ethano-14α-morphinan-7α-yl]-3,3-dimethylbutan-2-ol hydrochloride. It has the following chemical structure: Buprenorphine HCl is a white or almost white crystalline powder, sparingly soluble in water, freely soluble in methanol, soluble in alcohol, and practically insoluble in cyclohexane. Chemically, naloxone HCl dihydrate is 17-allyl-4,5 α -epoxy-3,14-dihydroxymorphinan-6-one hydrochloride dihydrate. It has the following chemical structure: Naloxone hydrochloride dihydrate is a white or almost white powder and is soluble in water, slightly soluble in alcohol, and practically insoluble in toluene and ether.