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Drug interactions

Apomorphine + Dimenhydrinate

Severity: Moderate

Apomorphine and Dimenhydrinate: 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 agents can cause drowsiness and dizziness, so combined use may increase sedation and impair alertness. Apomorphine may also cause orthostatic hypotension, which sedation can make more hazardous.

What this interaction means in plain words

Apomorphine and Dimenhydrinate 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; Dimenhydrinate belongs to Respiratory.

Evidence level: Low

Why it happens

Additive CNS depressant effects.

What to do

Monitor for excess sedation and postural dizziness, and counsel against driving until tolerance is established. Note that sedating antiemetics are generally preferred to avoid with apomorphine if an alternative exists.

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 Dimenhydrinate?

MediHelp rates the interaction as moderate. Apomorphine and Dimenhydrinate 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 agents can cause drowsiness and dizziness, so combined use may increase sedation and impair alertness. Apomorphine may also cause orthostatic hypotension, which sedation can make more hazardous.

How serious is the interaction between Apomorphine and Dimenhydrinate?

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 excess sedation and postural dizziness, and counsel against driving until tolerance is established. Note that sedating antiemetics are generally preferred to avoid with apomorphine if an alternative exists.

What other medicines interact with Dimenhydrinate?

MediHelp also lists interactions of Dimenhydrinate with, for example, Belladonna and opium, Brexanolone, Calcium / magnesium / potassium / sodium oxybates. The full list is on the Dimenhydrinate page.

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