Aheroin addict went through the following treatment to stop his drug abuse: a doctor gradually replaced his daily heroin dosage with the legal drug methadone. what kind of treatment is this

The correct answer would be - replacement therapy or supervised medication.

Explanation:

Heroin addiction is a serious issue as during detoxification withdrawal symptoms arise and cause various serious problems. Thus different drug center uses replacement therapy to stop the heroine with the legal drug of methadone approved by the WHO.

Replacement therapies are medication or therapy that used to treat the addiction of heroin, oxycontin and morphine and other opiates by replacing their normal dose with the drugs such as methadone which is primary replacement medication therapy medication under the supervision of the doctor or rehabilitation center.

Thus, the correct answer is - replacement therapy or supervised medication.