Drug interactions
Amobarbital + Ivosidenib
Severity: Major
Amobarbital 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
Amobarbital can reduce ivosidenib plasma concentrations by inducing CYP3A4. Lower exposure may lead to loss of efficacy in IDH1-mutated leukemia.
What this interaction means in plain words
Amobarbital 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.
Amobarbital belongs to Central Nervous System; Ivosidenib belongs to Oncology.
Why it happens
CYP3A4 induction accelerates ivosidenib clearance.
What to do
Avoid strong CYP3A4 inducers with ivosidenib and select an alternative sedative or anticonvulsant. If unavoidable, monitor disease response closely.
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?
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Other interactions of Amobarbital
- Amobarbital + Calcium / magnesium / potassium / sodium oxybates Contraindicated
- Amobarbital + Doravirine Contraindicated
- Amobarbital + Elbasvir / grazoprevir Contraindicated
- Amobarbital + Isavuconazonium Contraindicated
- Amobarbital + Isocarboxazid Contraindicated
- Amobarbital + Lonafarnib Contraindicated
Other interactions of Ivosidenib
- Alfuzosin + Ivosidenib Major
- Amiodarone + Ivosidenib Major
- Amisulpride + Ivosidenib Major
- Amitriptyline + Ivosidenib Major
- Anagrelide + Ivosidenib Major
- Apalutamide + Ivosidenib Major
Frequently asked questions
Can I take Amobarbital with Ivosidenib?
MediHelp rates the interaction as major. Amobarbital 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. Amobarbital can reduce ivosidenib plasma concentrations by inducing CYP3A4. Lower exposure may lead to loss of efficacy in IDH1-mutated leukemia.
How serious is the interaction between Amobarbital 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: Avoid strong CYP3A4 inducers with ivosidenib and select an alternative sedative or anticonvulsant. If unavoidable, monitor disease response closely.
What other medicines interact with Amobarbital?
MediHelp also lists interactions of Amobarbital with, for example, Calcium / magnesium / potassium / sodium oxybates, Doravirine, Elbasvir / grazoprevir. The full list is on the Amobarbital page.
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