The use of plants in conventional modern medicine is evidenced by the drug atropine, which is derived from which plant?
a. Digitalis purpurea
b. Cephaelis ipecacuanha
c. Rauwolfia serpentina
d. Atropa belladonna
ANS: D
Correct: Atropine is derived from the Atropa belladonna plant; it primarily affects the parasympathetic nervous system.
Incorrect:
a. The drug digitalis (Lanoxin) is derived from the Digitalis purpurea plant; it increases contractility of the heart, making it a popular choice for patients in heart failure.
b. The drug ipecac is derived from the plant Cephaelis ipecacuanha; it is used to induce vomiting in some cases of poisoning.
c. The drug reserpine is derived from the plant known as Rauwolfia serpentina and was used in the past to treat patients with depression; currently, it is used in the treatment of those with hypertension.
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