title: Preliminary observations with acute and chronic methadone and 1-alpha-acetylmethadol administration in humans.
mesh_terms: D002986:Clinical Trials as Topic; D004334:Drug Administration Schedule; D004361:Drug Tolerance; D005260:Female; D006801:Humans; D008297:Male; D008691:Methadone / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000494:pharmacology*; D008692:Methadyl Acetate / Q000008:administration & dosage / Q000494:pharmacology*; D009020:Morphine / Q000037:antagonists & inhibitors; D019966:Substance-Related Disorders / Q000503:physiopathology; D013997:Time Factors
chemical_list: D009020:Morphine; D008692:Methadyl Acetate; D008691:Methadone