Drugs - Parkinsons - COMT Inhibitors Flashcards
1
Q
Which are the COMT inhibitors used in Parkinson’s?
A
Tolcapone (Tasmar)
Entacapone (Comtan)
2
Q
What are the method of action of the COMT inhibitors?
A
They block the peripheral conversion of levodopa to 3-O-methyldopa, allowing for increased levels of levodopa to be delivered centrally
3
Q
What is the difference about where COMT is inhibited between Talcapone and Entacapone?
A
Talcapone - in the CNS and periphery
Entacapone - periphery
4
Q
Which Parkinson’s agent can produce explosive diarrhea after 30 to 40 days on this drug?
A
Talcapone
5
Q
Which Parkinson’s agent has the potential for serious hepatotoxicity and thus requires informed consent before use?
A
Talcapone