Patienter som tager antikoagulantia af coumarintypen sammen med Xeloda skal kontrolleres regelmæssigt mht. ændringer i deres koagulationsparametre (PT eller INR), og antikoagulansdosis skal om nødvendigt justeres.
Patients taking coumarin-derivative anticoagulants concomitantly with Xeloda should be monitored regularly for alterations in their coagulation parameters (PT or INR) and the anti-coagulant dose adjusted accordingly.