Darunavir and Rivaroxaban interaction

Darunavir and Rivaroxaban: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.

Major

Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.

What the FDA labels say

From the Darunavir (PREZISTA) label · effective 2025-08-29

Major

Refer to apixaban dosing instructions for co-administration with P-gp and strong CYP3A inhibitors in apixaban prescribing information. rivaroxaban ↑ rivaroxaban Co-administration of PREZISTA/ritonavir and rivaroxaban is not recommended because it may lead to an increased bleeding risk. dabigatran etexilate edoxaban ↑ dabigatran ↑ edoxaban Refer to the dabigatran…

Drug interactionsnames RivaroxabanView label on DailyMed
Moderate

Anticoagulants : Direct Oral Anticoagulants (DOACs) apixaban ↑ apixaban Due to potentially increased bleeding risk, dosing recommendations for co-administration of apixaban with PREZISTA/ritonavir depend on the apixaban dose.

Drug interactionsby drug classView label on DailyMed
Moderate

Other Anticoagulants warfarin ↓ warfarin ↔ darunavir Warfarin concentrations are decreased when co-administered with PREZISTA/ritonavir.

Drug interactionsby drug classView label on DailyMed

From the Rivaroxaban (Xarelto) label · effective 2026-08-12

Major

Use with P-gp and Strong CYP3A Inhibitors or Inducers Avoid concomitant use of XARELTO with known combined P-gp and strong CYP3A inhibitors [see Drug Interactions (7.2) ] .

Warnings and precautionsby drug classView label on DailyMed
Major

• Avoid combined P-gp and strong CYP3A inhibitors and inducers ( 7.2 , 7.3 )

Drug interactionsby drug classView label on DailyMed
Major

Drugs that Inhibit Cytochrome P450 3A Enzymes and Drug Transport Systems Interaction with Combined P-gp and Strong CYP3A Inhibitors Avoid concomitant administration of XARELTO with known combined P-gp and strong CYP3A inhibitors (e.g., ketoconazole and ritonavir) [see Warnings and Precautions (5.6) and Clinical Pharmacology (12.3) ] .

Drug interactionsby drug classView label on DailyMed
Major

Interaction with Combined P-gp and Moderate CYP3A Inhibitors in Patients with Renal Impairment XARELTO should not be used in patients with CrCl 15 to <80 mL/min who are receiving concomitant combined P-gp and moderate CYP3A inhibitors (e.g., erythromycin) unless the potential benefit justifies the potential risk [see Warnings and Precautions (5.4) and Clinical…

Drug interactionsby drug classView label on DailyMed
Moderate

Concomitant use of drugs that are known combined P-gp and strong CYP3A inhibitors increases rivaroxaban exposure and may increase bleeding risk [see Drug Interactions (7.2) ] .

Warnings and precautionsby drug classView label on DailyMed

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Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.