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Drug interactions

Azelastine-fluticasone + Chlorpheniramine

Severity: Moderate

Azelastine-fluticasone and Chlorpheniramine: 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

Chlorpheniramine is a first-generation sedating antihistamine, and using it with azelastine duplicates antihistamine therapy. This may increase sedation and anticholinergic effects.

What this interaction means in plain words

Azelastine-fluticasone and Chlorpheniramine 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.

Azelastine-fluticasone belongs to Respiratory; Chlorpheniramine belongs to Respiratory.

Evidence level: Moderate

Why it happens

Duplicate H1-receptor antagonism with additive central nervous system depression.

What to do

Avoid combining two antihistamines unless clearly needed. Monitor for drowsiness and anticholinergic effects.

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 Azelastine-fluticasone with Chlorpheniramine?

MediHelp rates the interaction as moderate. Azelastine-fluticasone and Chlorpheniramine 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. Chlorpheniramine is a first-generation sedating antihistamine, and using it with azelastine duplicates antihistamine therapy. This may increase sedation and anticholinergic effects.

How serious is the interaction between Azelastine-fluticasone and Chlorpheniramine?

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 combining two antihistamines unless clearly needed. Monitor for drowsiness and anticholinergic effects.

What other medicines interact with Azelastine-fluticasone?

MediHelp also lists interactions of Azelastine-fluticasone with, for example, Calcium / magnesium / potassium / sodium oxybates, Sodium oxybate, Alfentanil. The full list is on the Azelastine-fluticasone page.

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