In 1981 you were on coumidin and told it was made from snake venom lost a lot of weight while now are again rat poison havent any is the old available?

Warfarin, commonly known by the brand name Coumadin, is a medication used to prevent blood clots. It works by interfering with the body's ability to form clots and is typically used to treat blood clots in the legs, prevent strokes in people with atrial fibrillation, and prevent blood clots after hip or knee replacement surgeries. Warfarin is not made from snake venom, but rather, it is a synthetic compound that was developed in the 1940s by researchers at the University of Wisconsin-Madison. It does contain diphacinone which is made from rat poison.

If you have any concerns about your medication, it is important to talk to your doctor. They can provide you with accurate information about the composition and effects of your medication and make any necessary adjustments to your treatment plan.