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Why Has Parkinson's Disease Been Treated by Injections of L-Dopa

Question 129

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.

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