Drug interactions
Ivacaftor + Olanzapine
Severity: Minor
Ivacaftor and Olanzapine: 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
Ivacaftor is a CYP3A substrate, and olanzapine is not a meaningful CYP3A4 inhibitor, so a clinically relevant rise in ivacaftor exposure is not expected. There is no reliable evidence of a significant interaction.
What this interaction means in plain words
Ivacaftor and Olanzapine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Ivacaftor belongs to Miscellaneous; Olanzapine belongs to Central Nervous System.
Why it happens
No established mechanism; olanzapine has negligible CYP3A4 inhibition.
What to do
No dose adjustment is needed. Monitor clinically for ivacaftor adverse effects as usual.
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 Ivacaftor and Olanzapine, 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.
Other interactions of Olanzapine
Other interactions of Ivacaftor
- Ensitrelvir + Ivacaftor Contraindicated
- Apalutamide + Ivacaftor Major
- Carbamazepine + Ivacaftor Major
- Clarithromycin + Ivacaftor Major
- Efavirenz + Ivacaftor Major
- Enzalutamide + Ivacaftor Major
Frequently asked questions
Can I take Ivacaftor with Olanzapine?
MediHelp rates the interaction as minor. Ivacaftor and Olanzapine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ivacaftor is a CYP3A substrate, and olanzapine is not a meaningful CYP3A4 inhibitor, so a clinically relevant rise in ivacaftor exposure is not expected. There is no reliable evidence of a significant interaction.
How serious is the interaction between Ivacaftor and Olanzapine?
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 dose adjustment is needed. Monitor clinically for ivacaftor adverse effects as usual.
What other medicines interact with Olanzapine?
MediHelp also lists interactions of Olanzapine with, for example, Amisulpride, Amoxapine, Apomorphine. The full list is on the Olanzapine 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.
