Home›Ritonavir›Ritonavir + Rivaroxaban

Does Ritonavir Interact with Rivaroxaban?

Ritonavir and Rivaroxaban have a contraindicated drug interaction according to U.S. FDA drug labeling data. Combined P-gp and strong CYP3A inhibitor that increases rivaroxaban exposure and may increase bleeding risk. Avoid concomitant administration. The mechanism involves inhibition of cyp3a4/5 and p-gp transporters. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Contraindicated
Ritonavir Class
Cytochrome P450 3A Inhibitor
Rivaroxaban Class
Factor Xa Inhibitor
Management
Do not take together
Data Source
U.S. FDA via OpenFDA

How This Interaction Works

The interaction between Ritonavir and Rivaroxaban occurs because inhibition of cyp3a4/5 and p-gp transporters. Clinically, this means combined p-gp and strong cyp3a inhibitor that increases rivaroxaban exposure and may increase bleeding risk. avoid concomitant administration. Because of the severity of this interaction, these medications are contraindicated — meaning they should not be taken together under any circumstances. If you are currently taking both, contact your healthcare provider immediately to discuss alternatives.

What To Tell Your Doctor or Pharmacist

If you are taking Ritonavir and your doctor is considering prescribing Rivaroxaban (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
  • Ask about alternative medications that do not interact with your current regimen
  • Ask how frequently you should be monitored while these are co-prescribed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Ritonavir+💊 Rivaroxaban(Rivaroxaban)

Severity & Interaction Details

⛔
contraindicated
Avoid this combination
FDA labeling lists this pair as contraindicated. The risk outweighs the benefit in nearly all cases.
Severity scale
MinorContra
On record
Yes
Drug A class
Cytochrome P450 3A Inhibitor
Drug B class
Factor Xa Inhibitor
Source
NLP:rivaroxaban

What this means in plain English

Combined P-gp and strong CYP3A inhibitor that increases rivaroxaban exposure and may increase bleeding risk. Avoid concomitant administration.

What the FDA label says

"Inhibition of CYP3A4/5 and P-gp transporters"

📖 Source: NLP:rivaroxaban

Recent research & FDA safety updates

Live

Auto-aggregated from PubMed E-utilities and FDA safety data.

Share this result:

WhatsAppText / SMSEmail
Also share on:XFacebook
Add more drugs
Check Ritonavir and Rivaroxaban against your full medication list

Most patients take more than two medications. CDI checks every pair across up to 20 drugs simultaneously — including OTCs and common supplements.

Add more drugs →

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. For informational purposes only. Always consult your pharmacist or physician.