title: Herion-caffeine-strychnine mixtures--where and why?
mesh_terms: D002110:Caffeine / Q000494:pharmacology*; D004338:Drug Combinations; D003932:Heroin / Q000494:pharmacology*; D006801:Humans; D013331:Strychnine / Q000494:pharmacology*; D019966:Substance-Related Disorders
chemical_list: D004338:Drug Combinations; D002110:Caffeine; D003932:Heroin; D013331:Strychnine