In particular, a billion is 10 9 = 1 000 000 000 in the American system and 10 12 = 1 000 000 000 000 in the European system. For 10 9, Europeans say thousand million or milliard.. Although we describe the two systems today as American or European, both systems are actually of French origin.
What is warfarin? Warfarin is an anticoagulant (blood thinner). Warfarin reduces the formation of blood clots. Warfarin is used to treat or prevent blood clots in veins or arteries, which can reduce the risk of stroke, heart attack, or other serious conditions. Warfarin may also be used for purposes not listed in this medication guide.
A Brigham and Women's Hospital answered. Warfarin (Coumadin) is an anticoagulant or blood thinner.. Anti means against, and coagulant refers to blood clotting. An anticoagulant helps reduce the risk of clots forming in the blood. Warfarin treatment will be monitored through regular laboratory testing. The blood test is called a PT or protime and is reported as an INR which stands for International Normalized Ratio.