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Drug interactions

Cyclosporin + Riociguat

Severity: Major

Cyclosporin and Riociguat: 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

Cyclosporine inhibits P-gp and BCRP, which can increase riociguat exposure. This may cause excessive vasodilation with symptomatic hypotension, dizziness or syncope.

What this interaction means in plain words

Cyclosporin and Riociguat 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; Riociguat belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Cyclosporine inhibits P-gp/BCRP efflux and CYP-mediated clearance, increasing riociguat plasma concentrations.

What to do

If coadministration cannot be avoided, consider a lower riociguat starting dose of 0.5 mg three times daily and monitor blood pressure. Reduce the dose if hypotension develops.

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 Riociguat?

MediHelp rates the interaction as major. Cyclosporin and Riociguat 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. Cyclosporine inhibits P-gp and BCRP, which can increase riociguat exposure. This may cause excessive vasodilation with symptomatic hypotension, dizziness or syncope.

How serious is the interaction between Cyclosporin and Riociguat?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: If coadministration cannot be avoided, consider a lower riociguat starting dose of 0.5 mg three times daily and monitor blood pressure. Reduce the dose if hypotension develops.

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.

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