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Drug interactions

Moxonidine + Oxymorphone

Severity: Moderate

Moxonidine and Oxymorphone: 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

Moxonidine is a centrally acting antihypertensive that can cause drowsiness and dizziness, and opioids may add to sedation and hypotension. The effect is generally modest but can matter in elderly patients.

What this interaction means in plain words

Moxonidine and Oxymorphone 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.

Evidence level: Low

Why it happens

Additive CNS depression and blood pressure lowering through central imidazoline/alpha-2 effects and opioid actions.

What to do

Monitor blood pressure and sedation when starting or titrating either drug. Counsel patients to rise slowly and avoid driving if drowsy.

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 Moxonidine with Oxymorphone?

MediHelp rates the interaction as moderate. Moxonidine and Oxymorphone 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. Moxonidine is a centrally acting antihypertensive that can cause drowsiness and dizziness, and opioids may add to sedation and hypotension. The effect is generally modest but can matter in elderly patients.

How serious is the interaction between Moxonidine and Oxymorphone?

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 blood pressure and sedation when starting or titrating either drug. Counsel patients to rise slowly and avoid driving if drowsy.

What other medicines interact with Oxymorphone?

MediHelp also lists interactions of Oxymorphone with, for example, Alvimopan, Ethanol, Isocarboxazid. The full list is on the Oxymorphone page.

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