Methadone 10 mg is used to treat severe ongoing pain (such as due to cancer). Methadone belongs to a class of drugs known as opioid analgesics. It works in the brain to change how your body feels and responds to pain. Do not use this medication to relieve pain that is mild or that will go away in a few days (such as pain from surgery). This medication is not for occasional ("as needed") use. This medication is also used to treat opioid use disorder as part of an approved treatment program. It helps prevent withdrawal symptoms caused by stopping other opioids. When Methadone 10 mg is used to replace another opioid, it helps to lessen the harm accompanied by opioids. It also helps to minimize the effects of withdrawal and in this way, Methadone makes it easier for people to stop their harmful drugs slowly. Methadone 10 mg tablets can also be used to reduce feelings of pain by interrupting the nerve signals.