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Drug interactions

Apomorphine + Chlorzoxazone

Severity: Moderate

Apomorphine and Chlorzoxazone: 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

Apomorphine can cause somnolence, sudden sleep onset and dizziness, and chlorzoxazone may add to these effects. This may impair alertness and increase fall risk.

What this interaction means in plain words

Apomorphine and Chlorzoxazone 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; Chlorzoxazone belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Additive CNS depression and somnolence.

What to do

Monitor for excessive sedation and orthostatic symptoms. Counsel patients about driving and operating machinery.

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 Chlorzoxazone?

MediHelp rates the interaction as moderate. Apomorphine and Chlorzoxazone 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 can cause somnolence, sudden sleep onset and dizziness, and chlorzoxazone may add to these effects. This may impair alertness and increase fall risk.

How serious is the interaction between Apomorphine and Chlorzoxazone?

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 and orthostatic symptoms. Counsel patients about driving and operating machinery.

What other medicines interact with Chlorzoxazone?

MediHelp also lists interactions of Chlorzoxazone with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Chlorzoxazone 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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