Skip to content

Drug interactions

Azelastine + Passion flower

Severity: Minor

Azelastine and Passion flower: 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

Passion flower has sedative and anxiolytic properties that may add to the drowsiness caused by azelastine. The clinical evidence is limited and largely theoretical.

What this interaction means in plain words

Azelastine and Passion flower 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

Presumed additive CNS depression, likely via GABAergic activity of the herb.

What to do

Advise the patient to watch for excess drowsiness and avoid driving if affected. Stop the herbal product if sedation becomes troublesome.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Azelastine and Passion flower, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Azelastine with Passion flower?

MediHelp rates the interaction as minor. Azelastine and Passion flower have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Passion flower has sedative and anxiolytic properties that may add to the drowsiness caused by azelastine. The clinical evidence is limited and largely theoretical.

How serious is the interaction between Azelastine and Passion flower?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise the patient to watch for excess drowsiness and avoid driving if affected. Stop the herbal product if sedation becomes troublesome.

What other medicines interact with Azelastine?

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

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in