Drug interactions
Ivabradine + Nelfinavir
Severity: Contraindicated
Ivabradine and Nelfinavir: contraindicated 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
Nelfinavir inhibits CYP3A4 strongly enough to raise ivabradine exposure substantially. This may provoke severe bradycardia and conduction disturbances.
What this interaction means in plain words
Ivabradine and Nelfinavir are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Ivabradine belongs to Cardiovascular; Nelfinavir belongs to Anti Virals.
Why it happens
CYP3A4 inhibition reduces ivabradine metabolism.
What to do
Avoid the combination and choose an alternative agent.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Ivabradine
- Atazanavir + Ivabradine Contraindicated
- Clarithromycin + Ivabradine Contraindicated
- Cobicistat + Ivabradine Contraindicated
- Conivaptan + Ivabradine Contraindicated
- Darunavir + Ivabradine Contraindicated
- Diltiazem + Ivabradine Contraindicated
Other interactions of Nelfinavir
- Alfuzosin + Nelfinavir Contraindicated
- Avanafil + Nelfinavir Contraindicated
- Dronedarone + Nelfinavir Contraindicated
- Eletriptan + Nelfinavir Contraindicated
- Ergotamine + Nelfinavir Contraindicated
- Flibanserin + Nelfinavir Contraindicated
Frequently asked questions
Can I take Ivabradine with Nelfinavir?
MediHelp rates the interaction as contraindicated. Ivabradine and Nelfinavir are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Nelfinavir inhibits CYP3A4 strongly enough to raise ivabradine exposure substantially. This may provoke severe bradycardia and conduction disturbances.
How serious is the interaction between Ivabradine and Nelfinavir?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and choose an alternative agent.
What other medicines interact with Ivabradine?
MediHelp also lists interactions of Ivabradine with, for example, Atazanavir, Clarithromycin, Cobicistat. The full list is on the Ivabradine page.
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