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Drug interactions

Asenapine + Opicapone

Severity: Moderate

Asenapine and Opicapone: moderate interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Opicapone is a COMT inhibitor used in Parkinson disease and is not a meaningful sedative, though somnolence is reported. Asenapine, a dopamine antagonist, may also oppose the antiparkinsonian effect of dopaminergic therapy.

What this interaction means in plain words

Asenapine and Opicapone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Asenapine belongs to Central Nervous System; Opicapone belongs to Central Nervous System.

Evidence level: Low

Why it happens

Pharmacodynamic antagonism of dopaminergic therapy by asenapine, with possible additive somnolence.

What to do

Monitor for worsening parkinsonian motor symptoms and for somnolence. If an antipsychotic is needed in Parkinson disease, prefer quetiapine or clozapine over asenapine.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Asenapine with Opicapone?

MediHelp rates the interaction as moderate. Asenapine and Opicapone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Opicapone is a COMT inhibitor used in Parkinson disease and is not a meaningful sedative, though somnolence is reported. Asenapine, a dopamine antagonist, may also oppose the antiparkinsonian effect of dopaminergic therapy.

How serious is the interaction between Asenapine and Opicapone?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for worsening parkinsonian motor symptoms and for somnolence. If an antipsychotic is needed in Parkinson disease, prefer quetiapine or clozapine over asenapine.

What other medicines interact with Asenapine?

MediHelp also lists interactions of Asenapine with, for example, Pimozide, Thioridazine, Vandetanib. The full list is on the Asenapine page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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