Patterns of simultaneous polysubstance use in drug using university students
Human Psychopharmacology Clinical and Experimental June 1, 2006 Sean P. Barrett, Christine Darredeau, Robert O. Pihl 276 citations
Among 149 university students who use drugs, alcohol, tobacco, and cannabis are frequently used together and with other substances. When alcohol is taken with cannabis, psilocybin, MDMA, cocaine, amphetamine, methylphenidate, or LSD, alcohol is typically consumed first. People drink more alcohol when they also use cocaine or methylphenidate than when they drink alone. Tobacco smoking increases above usual rates when used with alcohol, cannabis, psilocybin, MDMA, cocaine, amphetamine, LSD, or methylphenidate. Cannabis use patterns do not systematically relate to other substances. The findings indicate that the way a substance is used often depends on what other substances are taken at the same time.