Warfarin is often referred to as a "blood thinner," but this is a misnomer because warfarin (and other coagulation modifiers) do not actually "thin" the blood. For example, when you cut yourself, there is a series of clotting factors found in your blood that help to form a clot to stop the bleeding.
Lasix (furosemide) is a loop diuretic (water pill) that prevents your body from absorbing too much salt. This allows the salt to instead be passed in your urine. Lasix is used to treat fluid retention in people with congestive heart failure, liver disease, or a kidney disorder such as nephrotic syndrome.
Methotrexate (Rheumatrex, Trexall, Otrexup, Rasuvo) Methotrexate is one of the most effective and commonly used medications in the treatment of rheumatoid arthritis and other forms of inflammatory arthritis, and also may be used to treat lupus, inflammatory myositis, vasculitis, and some forms of childhood arthritis.