Multiple Choice
Why has Parkinson's disease been treated by injections of L-dopa rather than injections of dopamine?
A) Dopamine cannot be made into a drug.
B) Dopamine cannot cross the blood-brain barrier.
C) L-dopa has fewer side effects than dopamine when taken as a drug.
D) L-dopa is less expensive to manufacture than dopamine.
Correct Answer:

Verified
Correct Answer:
Verified
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