Acryth Erythromycin Warfarin Sodium
MajorErythromycin increases warfarin effect and INR, raising the risk of serious bleeding.
These medicines can affect each other in a serious way. Do not start taking them together unless your doctor has said it is OK. If you already take both, do not stop either one on your own: speak to your doctor or pharmacist soon.
What to do: Monitor INR closely during and after the course; reduce warfarin dose as needed.