Cocaine
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
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Religious Studies, Education, Psychology, History, Literature, Philosophy, Entire Library
...10 to 30 minutes, and the user begins to crave more immediately...motivation, and boredom). Many users take other drugs ( alcohol , marijuana , heroin ) to attenuate these effects...combination of cocaine and heroin, known as a "speedball...membranes; shared needles put the user at increased risk of HIV infection...