Coumadin is used to treat Atrial Fibrillation, Deep Vein Thrombosis, Stroke. The generic version is called Warfarin sodium. The average Coumadin cash price is about $56.15 for a supply of Tablet 4 MG 30 pcs. You can reduce your Coumadin cost by up to 75% with our free Coumadin discount card. Bring it to a participating pharmacy near you to save on your prescription medication.