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See also: méthadone
- (Received Pronunciation) IPA(key): /ˈmɛθ.əd.əʊn/
Audio (Southern England) (file)
- (General American) IPA(key): /ˈmɛθ.əˌdoʊn/
- (pharmacology) A powerful synthetic analgesic drug which is similar to morphine in its effects but less sedative and is used as a substitute drug in the treatment of morphine and heroin addiction.
synthetic opioid analgesic