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Drug interactions

Apomorphine + Orphenadrin

Severity: Moderate

Apomorphine and Orphenadrin: 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

Both drugs can cause drowsiness and dizziness, and apomorphine may cause hypotension and sudden sleep onset. Orphenadrine's anticholinergic effects may also add to confusion or hallucinations in susceptible patients.

What this interaction means in plain words

Apomorphine and Orphenadrin 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.

Apomorphine belongs to Central Nervous System; Orphenadrin belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Additive CNS depressant and anticholinergic effects.

What to do

Monitor for excessive sedation, confusion and orthostatic hypotension, and advise caution with driving. Reduce the dose of either drug if adverse effects occur.

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 Apomorphine with Orphenadrin?

MediHelp rates the interaction as moderate. Apomorphine and Orphenadrin 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. Both drugs can cause drowsiness and dizziness, and apomorphine may cause hypotension and sudden sleep onset. Orphenadrine's anticholinergic effects may also add to confusion or hallucinations in susceptible patients.

How serious is the interaction between Apomorphine and Orphenadrin?

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 excessive sedation, confusion and orthostatic hypotension, and advise caution with driving. Reduce the dose of either drug if adverse effects occur.

What other medicines interact with Orphenadrin?

MediHelp also lists interactions of Orphenadrin with, for example, Alfentanil, Amobarbital, Benzhydrocodone / acetaminophen. The full list is on the Orphenadrin 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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