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A street name for an alkaloid extracted from cocaine hydrochloride salt, mixed with sodium bicarbonate, and dried into so-called rocks. It differs from other forms of cocaine inasmuch as it is easily vaporized by heat and can be inhaled to produce an extremely rapid effect. Also called free base. See also cocaine-related disorders, freebasing. [So called because it makes a crackling sound when it is heated]

Subjects: Psychology — Public Health and Epidemiology.

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