Drug interactions
Olopatadine intranasal + Pimavanserin
Severity: Minor
Olopatadine intranasal and Pimavanserin: 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
Intranasal olopatadine can cause somnolence, and pimavanserin may cause sedation, so additive drowsiness and psychomotor impairment are possible. Systemic exposure from the nasal spray is modest, so the effect is usually limited.
What this interaction means in plain words
Olopatadine intranasal and Pimavanserin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Additive CNS depressant effects.
What to do
Counsel patients about drowsiness and caution with driving. Use a non-sedating alternative if sedation becomes problematic.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Olopatadine intranasal and Pimavanserin, 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.
Other interactions of Pimavanserin
- Lefamulin + Pimavanserin Contraindicated
- Pimavanserin + Pimozide Contraindicated
- Pimavanserin + Vandetanib Contraindicated
- Adagrasib + Pimavanserin Major
- Amiodarone + Pimavanserin Major
- Amisulpride + Pimavanserin Major
Frequently asked questions
Can I take Olopatadine intranasal with Pimavanserin?
MediHelp rates the interaction as minor. Olopatadine intranasal and Pimavanserin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Intranasal olopatadine can cause somnolence, and pimavanserin may cause sedation, so additive drowsiness and psychomotor impairment are possible. Systemic exposure from the nasal spray is modest, so the effect is usually limited.
How serious is the interaction between Olopatadine intranasal and Pimavanserin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel patients about drowsiness and caution with driving. Use a non-sedating alternative if sedation becomes problematic.
What other medicines interact with Pimavanserin?
MediHelp also lists interactions of Pimavanserin with, for example, Lefamulin, Pimozide, Vandetanib. The full list is on the Pimavanserin 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.
