Pill with imprint W21 is White, Round and has been identified as Buprenorphine Hydrochloride and Naloxone Hydrochloride (Sublingual) 2 mg (base) / 0.5 mg (base). It is supplied by Accord Healthcare Inc.

Buprenorphine/naloxone is used in the treatment of Opioid Use Disorder and belongs to the drug class narcotic analgesic combinations. Risk cannot be ruled out during pregnancy. Buprenorphine/naloxone 2 mg (base) / 0.5 mg (base) is classified as a Schedule 3 controlled substance under the Controlled Substance Act (CSA).