The most common adverse effect is bleeding. It occurs in 5–25% of patients and ranges from harmless nosebleeds to life-threatening bleeding in the brain, gut wall, adrenal glands, pleural cavity, pericardium, or subdural space. Other side effects are uncommon and include headache, nausea, reversible hair loss, purple toe syndrome, and allergic rashes. A rare but severe adverse effect is warfarin necrosis of the skin and subcutaneous tissue during the first days of treatment.
Phenprocoumon
Warfarin
Prasugrel
Elinogrel
Palladin
Dabigatran
Apixaban
Alteplase