Drug interactions
Isoflurane + Ivosidenib
Severity: Major
Isoflurane and Ivosidenib: major 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
Ivosidenib prolongs the QT interval, and isoflurane can also lengthen it, so the combination may increase the risk of torsades de pointes. The legacy description of a QT-shortening effect is not accurate.
What this interaction means in plain words
Isoflurane and Ivosidenib can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Isoflurane belongs to Central Nervous System; Ivosidenib belongs to Oncology.
Why it happens
Additive prolongation of cardiac repolarization.
What to do
Obtain a baseline ECG and correct potassium and magnesium before anesthesia. Monitor the QTc perioperatively and avoid other QT-prolonging drugs.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Isoflurane and Ivosidenib, 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 Isoflurane
Other interactions of Ivosidenib
- Alfuzosin + Ivosidenib Major
- Amiodarone + Ivosidenib Major
- Amisulpride + Ivosidenib Major
- Amitriptyline + Ivosidenib Major
- Amobarbital + Ivosidenib Major
- Anagrelide + Ivosidenib Major
Frequently asked questions
Can I take Isoflurane with Ivosidenib?
MediHelp rates the interaction as major. Isoflurane and Ivosidenib can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Ivosidenib prolongs the QT interval, and isoflurane can also lengthen it, so the combination may increase the risk of torsades de pointes. The legacy description of a QT-shortening effect is not accurate.
How serious is the interaction between Isoflurane and Ivosidenib?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and correct potassium and magnesium before anesthesia. Monitor the QTc perioperatively and avoid other QT-prolonging drugs.
What other medicines interact with Isoflurane?
MediHelp also lists interactions of Isoflurane with, for example, Adrenaline-articaine, Amisulpride, Arsenic trioxide. The full list is on the Isoflurane 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.
