This page explains what happens if Atorvastatin and Warfarin are taken together, according to official sources.
Compatible with routine monitoring
Atorvastatin and warfarin can normally be taken together safely. Clinical studies show no significant effect on anticoagulation or bleeding risk, with only a small, transient change in prothrombin time during the first days that returns to baseline.
These two medications can normally be taken together. Routine INR monitoring is advised when starting or adjusting atorvastatin doses to confirm stable baseline anticoagulation, as part of standard warfarin care.
Last updated: Sep 25, 2026
Before changing or stopping any medicine, ask your doctor or pharmacist. Never stop your medicine on your own.