Entacapone, taken with levodopa, is classified as which type of agent?

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Multiple Choice

Entacapone, taken with levodopa, is classified as which type of agent?

Explanation:
Entacapone is a COMT inhibitor. It blocks catechol-O-methyltransferase, the enzyme that metabolizes levodopa in the periphery to an inactive form. By reducing this breakdown, more levodopa remains available to reach the brain, boosting dopamine levels and extending the drug’s effect. This peripheral action with levodopa helps lessen wearing-off fluctuations in Parkinson’s treatment. It’s not an MAO-B inhibitor (which acts on brain dopamine breakdown), not a dopamine receptor agonist (which directly stimulates receptors), and not an anticholinergic (which modulates acetylcholine activity).

Entacapone is a COMT inhibitor. It blocks catechol-O-methyltransferase, the enzyme that metabolizes levodopa in the periphery to an inactive form. By reducing this breakdown, more levodopa remains available to reach the brain, boosting dopamine levels and extending the drug’s effect. This peripheral action with levodopa helps lessen wearing-off fluctuations in Parkinson’s treatment. It’s not an MAO-B inhibitor (which acts on brain dopamine breakdown), not a dopamine receptor agonist (which directly stimulates receptors), and not an anticholinergic (which modulates acetylcholine activity).

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