Deskripsi

Adding aspirin to rivaroxaban increases bleeding risk through additive antithrombotic effects; some indications (COMPASS trial) use this combination with careful patient selection.

Mekanisme

Aspirin inhibits COX-1–mediated thromboxane A2 in platelets; rivaroxaban blocks factor Xa, preventing fibrin clot generation. Together they target complementary steps in hemostasis.

Signifikansi Klinis

COMPASS demonstrated a 70% increase in major bleeding with rivaroxaban 2.5 mg BID + aspirin 100 mg, though offset by cardiovascular benefit in selected patients.

Penatalaksanaan

Use only in patients with established atherosclerotic cardiovascular disease per COMPASS criteria; prescribe rivaroxaban 2.5 mg BID (not the full anticoagulant dose); add PPI.

Penyangkalan Medis

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making medication decisions.

Data sources: ChEMBL, PubChem, DailyMed.