title: Leads to current therapy, to opioid receptor subtypes and to sigma receptors.
authors.affiliation: Department of Pharmacology and Toxicology, Medical Collge of Virginia, Virginia Commonwealth University, Richmond 23298-0613.
authors.forename: E L
authors.initials: EL
authors.lastname: May
mesh_terms: D000818:Animals; D006801:Humans; D009022:Morphine Derivatives / Q000138:chemical synthesis / Q000494:pharmacology; D009293:Opioid-Related Disorders / Q000188:drug therapy / Q000628:therapy*; D011957:Receptors, Opioid / Q000737:chemistry / Q000187:drug effects*; D017480:Receptors, sigma / Q000737:chemistry / Q000187:drug effects*
chemical_list: D009022:Morphine Derivatives; D011957:Receptors, Opioid; D017480:Receptors, sigma