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Drug interactions

Cyclosporin + Voxelotor

Severity: Major

Cyclosporin and Voxelotor: 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

Voxelotor inhibits CYP3A4 and may increase concentrations of cyclosporine, a narrow therapeutic index substrate. Higher cyclosporine levels increase risk of nephrotoxicity and hypertension.

What this interaction means in plain words

Cyclosporin and Voxelotor 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.

Cyclosporin belongs to Miscellaneous; Voxelotor belongs to Miscellaneous.

Evidence level: Moderate

Why it happens

Voxelotor inhibits CYP3A4, reducing cyclosporine metabolism.

What to do

Avoid if possible; otherwise monitor cyclosporine trough levels and renal function and reduce the cyclosporine dose as needed.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Cyclosporin with Voxelotor?

MediHelp rates the interaction as major. Cyclosporin and Voxelotor 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. Voxelotor inhibits CYP3A4 and may increase concentrations of cyclosporine, a narrow therapeutic index substrate. Higher cyclosporine levels increase risk of nephrotoxicity and hypertension.

How serious is the interaction between Cyclosporin and Voxelotor?

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 if possible; otherwise monitor cyclosporine trough levels and renal function and reduce the cyclosporine dose as needed.

What other medicines interact with Cyclosporin?

MediHelp also lists interactions of Cyclosporin with, for example, Adenovirus types 4 and 7 live, Aliskiren, Bcg vaccine live. The full list is on the Cyclosporin 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.

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