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Drug interactions

Brompheniramine + Phenylephrine po

Severity: Minor

Brompheniramine and Phenylephrine po: 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

Oral phenylephrine is a decongestant often combined with antihistamines such as brompheniramine in cold products. The combination is commonly used, and the stimulant and sedative effects are partly opposed, with no significant interaction established.

What this interaction means in plain words

Brompheniramine and Phenylephrine po 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.

What to do

No specific action required. Monitor blood pressure in patients with hypertension.

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 Phenylephrine po?

MediHelp rates the interaction as minor. Brompheniramine and Phenylephrine po have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Oral phenylephrine is a decongestant often combined with antihistamines such as brompheniramine in cold products. The combination is commonly used, and the stimulant and sedative effects are partly opposed, with no significant interaction established.

How serious is the interaction between Brompheniramine and Phenylephrine po?

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 required. Monitor blood pressure in patients with hypertension.

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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