title: Effect of propranolol on active users of heroin.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D003932:Heroin; D006556:Heroin Dependence / Q000188:drug therapy; D006801:Humans; D010919:Placebos; D011433:Propranolol / Q000627:therapeutic use*; D013375:Substance Withdrawal Syndrome / Q000188:drug therapy; D019966:Substance-Related Disorders / Q000188:drug therapy*; D013997:Time Factors
chemical_list: D010919:Placebos; D003932:Heroin; D011433:Propranolol