has part has part has_part has role levomethadone dextromethadone opioid analgesic xenobiotic serotonin uptake inhibitor mu-opioid receptor agonist NMDA receptor antagonist racemate methadone Beilstein:3213669 PMID:24489693 C21H27NO PMID:32302325 (RS)-methadone PMID:33428191 rac-6-dimethylamino-4,4-diphenyl-3-heptanone dl-methadone racemic methadone PMID:33475438 (+-)-methadone metadona HMDB:HMDB0014477 0 CAS:76-99-3 KEGG:D08195 PMID:32564328 Drug_Central:1728 CHEBI:6807 PMID:16097397 methadonum PMID:18628169 (6RS)-6-(dimethylamino)-4,4-diphenylheptan-3-one PMID:31262889 Wikipedia:Methadone chebi_ontology KEGG:C07163 PMID:32586692 PMID:33323695 309.453 PMID:32530053 methadone A racemate comprising equimolar amounts of dextromethadone and levomethadone. It is a opioid analgesic which is used as a painkiller and as a substitute for heroin in the treatment of heroin addiction. PMID:24117196 309.20926 Chemspider:3953 Reaxys:2221454 PMID:15106230 rac-6-(dimethylamino)-4,4-diphenylheptan-3-one PMID:33454797 DrugBank:DB00333 PMID:33432486 PMID:24157336 environmental contaminant