Suboxone is a brand name for a medication used in the treatment of opioid addiction. It contains a combination of buprenorphine and naloxone and is used as part of medication-assisted treatment (MAT) to help people overcome opioid dependence. Buprenorphine is a partial opioid agonist, which means it activates the same receptors in the brain as opioids, but to a lesser extent. This helps to reduce cravings and withdrawal symptoms associated with opioid addiction. Naloxone is an opioid antagonist, which reverses the effects of opioids in the event of an overdose. Suboxone is typically prescribed and administered by a healthcare professional and is only available by prescription.