Skip to content

Drug interactions

Olopatadine intranasal + Sevoflurane

Severity: Minor

Olopatadine intranasal and Sevoflurane: 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

Olopatadine is a sedating antihistamine, and intranasal use can cause somnolence. With sevoflurane, sedation may be additive, although systemic exposure from the nasal spray is low and general anesthesia is closely supervised.

What this interaction means in plain words

Olopatadine intranasal and Sevoflurane 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

Additive CNS depression from histamine H1 blockade and anesthetic action.

What to do

No routine change is needed. Avoid giving the nasal spray immediately before sedation and monitor recovery for prolonged drowsiness.

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 Olopatadine intranasal and Sevoflurane, 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 14 days on the web. No card needed.

Frequently asked questions

Can I take Olopatadine intranasal with Sevoflurane?

MediHelp rates the interaction as minor. Olopatadine intranasal and Sevoflurane have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Olopatadine is a sedating antihistamine, and intranasal use can cause somnolence. With sevoflurane, sedation may be additive, although systemic exposure from the nasal spray is low and general anesthesia is closely supervised.

How serious is the interaction between Olopatadine intranasal and Sevoflurane?

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 routine change is needed. Avoid giving the nasal spray immediately before sedation and monitor recovery for prolonged drowsiness.

What other medicines interact with Sevoflurane?

MediHelp also lists interactions of Sevoflurane with, for example, Amiodarone, Amisulpride, Arsenic trioxide. The full list is on the Sevoflurane 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