Duration of methadone induced cross-tolerance to heroin.
D000328:Adult; D004361:Drug Tolerance; D004335:Drug and Narcotic Control; D005059:Euphoria; D003932:Heroin; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008691:Methadone / Q000627:therapeutic use*; D008875:Middle Aged; D019966:Substance-Related Disorders / Q000188:drug therapy*; D013997:Time Factors
D003932:Heroin; D008691:Methadone