Drug interactions
Ivosidenib + Sofosbuvir-velpatasvir-voxilaprevir
Severity: Major
Ivosidenib and Sofosbuvir-velpatasvir-voxilaprevir: 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 induces CYP3A4 and may lower velpatasvir and voxilaprevir concentrations. This may reduce antiviral efficacy and cause virologic failure.
What this interaction means in plain words
Ivosidenib and Sofosbuvir-velpatasvir-voxilaprevir 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 belongs to Oncology; Sofosbuvir-velpatasvir-voxilaprevir belongs to Anti Virals.
Why it happens
Ivosidenib induces CYP3A4, which increases metabolism of velpatasvir and voxilaprevir.
What to do
Avoid coadministration where possible and consider an alternative HCV regimen or timing. If unavoidable, monitor HCV RNA for response.
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 Sofosbuvir-velpatasvir-voxilaprevir
- Fosphenytoin + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
- Phenobarbital + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
- Phenytoin + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
- Primidone + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
- Rifampin + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
- Rifapentine + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
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 Ivosidenib with Sofosbuvir-velpatasvir-voxilaprevir?
MediHelp rates the interaction as major. Ivosidenib and Sofosbuvir-velpatasvir-voxilaprevir 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 induces CYP3A4 and may lower velpatasvir and voxilaprevir concentrations. This may reduce antiviral efficacy and cause virologic failure.
How serious is the interaction between Ivosidenib and Sofosbuvir-velpatasvir-voxilaprevir?
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 coadministration where possible and consider an alternative HCV regimen or timing. If unavoidable, monitor HCV RNA for response.
What other medicines interact with Sofosbuvir-velpatasvir-voxilaprevir?
MediHelp also lists interactions of Sofosbuvir-velpatasvir-voxilaprevir with, for example, Fosphenytoin, Phenobarbital, Phenytoin. The full list is on the Sofosbuvir-velpatasvir-voxilaprevir page.
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