Drug interactions
Nefazodone + Sofosbuvir-velpatasvir-voxilaprevir
Severity: Moderate
Nefazodone and Sofosbuvir-velpatasvir-voxilaprevir: moderate 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
Nefazodone is a strong CYP3A4 inhibitor and may increase velpatasvir and voxilaprevir concentrations. Nefazodone also carries a hepatotoxicity risk that complicates care in patients with liver disease.
What this interaction means in plain words
Nefazodone and Sofosbuvir-velpatasvir-voxilaprevir can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Nefazodone inhibits CYP3A4, reducing metabolism of velpatasvir and voxilaprevir.
What to do
Monitor for adverse effects of the antiviral regimen and monitor liver function. Consider an alternative antidepressant given the hepatotoxicity risk.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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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
Frequently asked questions
Can I take Nefazodone with Sofosbuvir-velpatasvir-voxilaprevir?
MediHelp rates the interaction as moderate. Nefazodone and Sofosbuvir-velpatasvir-voxilaprevir can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Nefazodone is a strong CYP3A4 inhibitor and may increase velpatasvir and voxilaprevir concentrations. Nefazodone also carries a hepatotoxicity risk that complicates care in patients with liver disease.
How serious is the interaction between Nefazodone and Sofosbuvir-velpatasvir-voxilaprevir?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for adverse effects of the antiviral regimen and monitor liver function. Consider an alternative antidepressant given the hepatotoxicity risk.
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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