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Drug interactions

Brompheniramine + Metaproterenol

Severity: Minor

Brompheniramine and Metaproterenol: minor 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

Metaproterenol is a beta-agonist bronchodilator that can cause stimulation, tremor and tachycardia, whereas brompheniramine is sedating. There is no well-defined interaction; the effects mostly oppose each other and are unlikely to be clinically meaningful.

What this interaction means in plain words

Brompheniramine and Metaproterenol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

No established mechanism; opposing CNS effects of sedation and sympathomimetic stimulation.

What to do

No specific action is needed. Monitor for tachycardia or nervousness and drowsiness as usual.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Metaproterenol?

MediHelp rates the interaction as minor. Brompheniramine and Metaproterenol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Metaproterenol is a beta-agonist bronchodilator that can cause stimulation, tremor and tachycardia, whereas brompheniramine is sedating. There is no well-defined interaction; the effects mostly oppose each other and are unlikely to be clinically meaningful.

How serious is the interaction between Brompheniramine and Metaproterenol?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific action is needed. Monitor for tachycardia or nervousness and drowsiness as usual.

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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