Drug interactions
Brompheniramine + Olopatadine intranasal
Severity: Moderate
Brompheniramine and Olopatadine intranasal: 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 are H1 antihistamines with sedating potential, and intranasal olopatadine is partly absorbed systemically. Combined use may increase drowsiness and psychomotor impairment.
What this interaction means in plain words
Brompheniramine and Olopatadine intranasal 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.
Why it happens
Additive CNS depression through H1-receptor antagonism.
What to do
Avoid duplicate antihistamine therapy. If both are needed, caution against driving and hazardous tasks.
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?
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Other interactions of Brompheniramine
Frequently asked questions
Can I take Brompheniramine with Olopatadine intranasal?
MediHelp rates the interaction as moderate. Brompheniramine and Olopatadine intranasal 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 are H1 antihistamines with sedating potential, and intranasal olopatadine is partly absorbed systemically. Combined use may increase drowsiness and psychomotor impairment.
How serious is the interaction between Brompheniramine and Olopatadine intranasal?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid duplicate antihistamine therapy. If both are needed, caution against driving and hazardous tasks.
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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