Oh, incidentally, as someone who works with medical professionals, it is incorrect to refer to Warfarin as a "blood thinner" as it doesn't thin the blood. It is an anti-coagulanting agent, preventing the blood from coagulating and blocking the flow from a wound or clotting in the blood streams where a blockage may occur. You could say it makes blood less "sticky," but not making the blood less viscous, or giving the blood more liquidity.
I know, since I’m a physician. I’m just used to speaking with patients all day who refer to it as such.