Multiple choice

Match the following drugs with their plant source and medical use |||| |---|---|---| |Drug |Plant source |Medical use| |P. Quinine|i. Atropa belladonna|1. Antimalarial| |Q. Reserpine|ii. Camellia sinensis|2. Tranquilizer| |R. Caffeine|iii. Cinchona ledgeriana|3. Anticholinergic| |S. Atropine|iv. Rawvolfia serpentina|4. CNS stimulant|

  1. P - ii - 3, Q - iv - 1, R - i - 2, S - iii - 4

  2. P - iii - 1, Q - iv - 2, R - ii - 4, S - i - 3

  3. P - ii - 2, Q - iii - 4, R - iv - 3, S - i - 1

  4. P - i - 2, Q - ii - 4, R - iii - 2, S - iv - 3

  5. P - i - 4, Q - iii - 1, R - ii - 3, S - iv - 2
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B Correct answer
Explanation

Quinine, obtained from Cinchona ledgeriana, is a very commonly used anti-malarial drug. Reserpine, an alkaloid obtained from the roots of Rauwolfia serpentina, is used as tranquilizer. Caffeine is a bitter, white crystalline xanthine alkaloid and a stimulant drug obtained from Camellia sinensis. In humans, caffeine acts as a central nervous system stimulant, temporarily warding off drowsiness and restoring alertness. Atropine, an anticholinergic agent obtained from Atropa belladonna, is used as premedication in anaesthesia to reduce upper respiratory secretions.

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