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.
Definition of warfarin. : a crystalline anticoagulant coumarin derivative C19H16O4 that inhibits the production of prothrombin by vitamin K and is used as a rodent poison and in medicine; also : its sodium salt C19H15NaO4 used especially in the prevention or treatment of thromboembolic disease.
Warfarin may also prevent other clots from forming or prevent clots from becoming larger. There are other blood thinners that you may be given in the hospital or even at home for a short amount of time: Heparin, Lovenox, or Fragmin.. A. Warfarin, which goes by the brand name Coumadin, is an anticoagulant medication. This means that it helps prevent clots from forming in the blood. Blood thinners are used to treat some types of heart disease.