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Cocaine ('crack') is obtained from which plant, and what is its mechanism of action?
APapaver somniferum; depresses CNS
BAtropa belladonna; blocks acetylcholine
CErythroxylum coca (native to South America); interferes with the transport of dopamine — produces euphoria and increased energy; CNS stimulant
DCannabis sativa; alters serotonin
Answer & Solution
Correct answer: C. Erythroxylum coca (native to South America); interferes with the transport of dopamine — produces euphoria and increased energy; CNS stimulant
**Cocaine** (coke / crack) = from **Erythroxylum coca**. **Interferes with dopamine reuptake** → euphoria, increased energy, **CNS stimulant**. Excessive doses → hallucinations. Usually snorted.
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