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Does Riociguat Interact with Cilostazol?

CDI records a unknown classification for Riociguat and Cilostazol. The stored summary is: Clinical experience with co-administration of Adempas and other phosphodiesterase inhibitors (for example, milrinone, cilostazole, roflumilast) is limited. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This record was extracted from drug labeling through openFDA. NIH/NLM RxNorm is used for drug identities. The summary and severity classification are CDI's processed information, not a verbatim source quotation. Product, route, and patient circumstances matter.

Severity
Unknown
Riociguat Class
Soluble Guanylate Cyclase Stimulator
Cilostazol Class
Phosphodiesterase 3 Inhibitor
Management
Consult your pharmacist
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Riociguat and your doctor is considering prescribing Cilostazol (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Never stop or change either medication without first consulting your healthcare provider
💊 Riociguat(Adempas)+💊 Cilostazol(Cilostazol)

Severity & Interaction Details

ℹ️
unknown
Interaction documented — severity unclassified
The CDI record includes an interaction but its severity has not been classified.
Severity scale
MinorContra
On record
Yes
Drug A class
Soluble Guanylate Cyclase Stimulator
Drug B class
Phosphodiesterase 3 Inhibitor
Source
FDA drug label - riociguat

What this means in plain English

Clinical experience with co-administration of Adempas and other phosphodiesterase inhibitors (for example, milrinone, cilostazole, roflumilast) is limited.

About Riociguat and Cilostazol

Riociguat is a Soluble Guanylate Cyclase Stimulator, while Cilostazol is a Phosphodiesterase 3 Inhibitor. Riociguat is also sold under the brand name Adempas. Both Riociguat and Cilostazol carry an FDA boxed warning — the agency's most serious safety designation.

Source and Limitations

This record was produced by automated extraction from drug-label information, including AI processing. The summary and mechanism are not verbatim FDA quotations. The drug profiles below may describe different formulations from the source label. Confirm the exact product and route with your pharmacist. This page does not establish independent clinical review.

📖 Source: FDA drug label - riociguat

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How this information is prepared: CDI uses automated extraction, including AI, to summarize drug labeling from openFDA and includes separately identified curated-reference records. RxNorm helps identify medications; it does not verify interaction claims. Extracted summaries and CDI severity classifications can contain errors and are not verbatim FDA statements or independent clinical review. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.

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