title: Morphine challenges in levo-alpha-acetylmethadol (LAAM) post-addict rats.
mesh_terms: D000818:Animals; D005260:Female; D006801:Humans; D008691:Methadone / Q000031:analogs & derivatives*; D008692:Methadyl Acetate / Q000494:pharmacology*; D009020:Morphine / Q000494:pharmacology*; D051381:Rats; D012890:Sleep / Q000187:drug effects*; D013375:Substance Withdrawal Syndrome; D019966:Substance-Related Disorders; D014851:Wakefulness / Q000187:drug effects
chemical_list: D009020:Morphine; D008692:Methadyl Acetate; D008691:Methadone