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Opicapone, sold under the brand name Ongentys, is a medication which is administered together with levodopa in people with Parkinson's disease. Opicapone is a catechol-O-methyltransferase (COMT) inhibitor.
Read the full article on WikipediaParkinson disease Clinical criteria: The treatment must be as adjunctive therapy to a levodopa-decarboxylase inhibitor combination, AND Patient must be experiencing fluctuations in motor function due to end-of-dose effect. Treatment criteria: Must be treated by a health practitioner who is any of: (i) a medical practitioner, (ii) an authorised PBS prescriber who is not a medical practitioner, but who is: (a) sharing care of the patient with at least one medical practitioner; (b) intending to share care of the patient with a medical practitioner.
“Opicapone blocks the enzyme catechol-O-methyltransferase (COMT) effectively (>90% at therapeutic doses), selectively and reversibly, and only outside the central nervous system. It dissociates slowly from COMT, resulting in a duration of action longer than 24 hours despite its short blood plasma half-life. As COMT and DOPA decarboxylase are the main enzymes for degrading levodopa, blocking the two effectively increases its concentrations in the bloodstream. More levodopa reaches the brain, where it is activated to dopamine.”
“0.7 to 3.2 hours”
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