title: Letter: Blockade of morphine abstinence by delta9-tetrahydrocannabinol.
mesh_terms: D000818:Animals; D002188:Cannabis / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D013759:Dronabinol / Q000627:therapeutic use*; D006801:Humans; D009021:Morphine Dependence / Q000188:drug therapy*; D008517:Phytotherapy; D051381:Rats; D013375:Substance Withdrawal Syndrome / Q000517:prevention & control*
chemical_list: D013759:Dronabinol