
Cocaine
Tropane alkaloid and stimulant drug

Tropane alkaloid and stimulant drug
Cocaine is a central nervous system (CNS) stimulant and tropane alkaloid, derived primarily from the leaves of two coca species native to South America: Erythroxylum coca and E. novogranatense. The leaves are processed into cocaine paste, a crude mixture of coca alkaloids, from which cocaine base is isolated and then converted to cocaine hydrochloride. Although total synthesis is possible, it is complex and not used for production. Historically, cocaine was a standard topical medication used as a local anesthetic with intrinsic vasoconstrictor properties. However, its high abuse potential, adverse effects, and cost have limited its medical use and led to its replacement by alternative medicines. Street cocaine is commonly snorted, injected, or smoked as crack cocaine; its effects last up to 90 minutes depending on the route of administration. Pharmacologically, cocaine acts as a serotonin–norepinephrine–dopamine reuptake inhibitor (SNDRI), producing reinforcing effects such as euphoria...
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