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Drug interactions

Brompheniramine + Moxonidine

Severity: Moderate

Brompheniramine and Moxonidine: 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 dry mouth. Brompheniramine may add to sedation and dry mouth.

What this interaction means in plain words

Brompheniramine and Moxonidine 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 additive anticholinergic or drying effects.

What to do

Warn about additive drowsiness and dizziness. Monitor blood pressure and consider a non-sedating antihistamine.

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 Brompheniramine with Moxonidine?

MediHelp rates the interaction as moderate. Brompheniramine and Moxonidine 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 dry mouth. Brompheniramine may add to sedation and dry mouth.

How serious is the interaction between Brompheniramine and Moxonidine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Warn about additive drowsiness and dizziness. Monitor blood pressure and consider a non-sedating antihistamine.

What other medicines interact with Brompheniramine?

MediHelp also lists interactions of Brompheniramine with, for example, Alfentanil, Belladonna and opium, Benzhydrocodone / acetaminophen. The full list is on the Brompheniramine page.

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