Parkinson's Parkinson's Treatment and Medications 1

Question 1

What is the most effective pharmacological treatment for the motor symptoms of Parkinson's disease?

Accepted Answer

Levodopa/carbidopa (Sinemet)

Answer

Levodopa combined with carbidopa (Sinemet) remains the gold standard and most effective treatment for Parkinson's motor symptoms.

Question 2

What is the role of carbidopa when combined with levodopa in Parkinson's treatment?

Accepted Answer

Prevents peripheral conversion of levodopa to dopamine

Answer

Carbidopa inhibits peripheral dopa decarboxylase, preventing levodopa from being converted to dopamine before it crosses the blood-brain barrier.

Question 3

Which class of medications mimics dopamine by directly stimulating dopamine receptors in Parkinson's treatment?

Accepted Answer

Dopamine agonists

Answer

Dopamine agonists such as pramipexole and ropinirole directly stimulate dopamine receptors and are used as monotherapy or adjunct to levodopa.

Question 4

Dyskinesias in Parkinson's disease treatment refer to:

Accepted Answer

Involuntary writhing movements caused by long-term levodopa use

Answer

Dyskinesias are involuntary, often choreiform movements that develop as a complication of long-term levodopa therapy in Parkinson's disease.

Question 5

Which surgical treatment for Parkinson's disease involves implanting electrodes in the brain to modulate neural activity?

Accepted Answer

Deep brain stimulation (DBS)

Answer

Deep brain stimulation (DBS) involves surgically implanting electrodes, typically in the subthalamic nucleus or globus pallidus, connected to an implanted pulse generator.

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Parkinson's Parkinson's Treatment and Medications 1