Which general class of drugs is useful in treating Parkinson's disease?
A) dopamine agonists
B) dopamine antagonists
C) MAO inhibitors
D) tricyclics
E) phenothiazines
Question 2
Although L-DOPA does have some beneficial effects, it is not a solution to the problem of Parkinson's disease because it
A) typically becomes less and less therapeutically effective with use.
B) is too expensive.
C) can be safely administered to only a small proportion of patients.
D) is unstable at room temperature.
E) does not pass through the blood-brain barrier.
Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra
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Dopamine cannot cross the blood–brain barrier. Levodopa, its precursor, can. Once levodopa crosses ...
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