Crack cocaine - Wikipedia
https://en.wikipedia.org/wiki/Crack_cocaine
OverviewPhysical and chemical propertiesRecreational useAdverse effectsOverdoseSociety and cultureSee alsoFurther readingCrack cocaine, commonly known simply as crack, and also known as rock, is a free base form of the stimulant cocaine that can be smoked. Crack offers a short, intense high to smokers. The Manual of Adolescent Substance Abuse Treatment calls it the most addictive form of cocaine. Crack cocaine first saw widespread use as a recreational drug in primarily impoverished neighborhoods in New York City, Philadelphia, Baltimore, Washington, D.C., Los Angeles, San Fra…
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