SPL Set ID: e73d37f8-8a28-4d93-9529-fd1e2c84228a

Warfarin sodium tablets contain warfarin sodium, an anticoagulant that acts by inhibiting vitamin K-dependent coagulation factors. The chemical name of warfarin sodium is 3-(α-acetonylbenzyl)-4-hydroxycoumarin sodium salt, which is a racemic mixture of the R - and S -enantiomers. Crystalline warfarin sodium is an isopropanol clathrate. Its empirical formula is C 19 H 15 NaO 4 , and its structural formula is represented by the following: Crystalline warfarin sodium occurs as a white, odorless, crystalline powder that is discolored by light. It is very soluble in water, freely soluble in alcohol, and very slightly soluble in chloroform and ether. Warfarin sodium tablets, USP for oral use also contain: All strengths: Anhydrous lactose, corn starch, and magnesium stearate 1 mg: D&C Red No. 6 Barium Lake 2 mg: FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake 2.5 mg: D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake 3 mg: D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake 4 mg: FD&C Blue No. 1 Aluminum Lake 5 mg: D&C Red No. 6 Barium Lake, D&C Yellow No. 10 Aluminum Lake 6 mg: D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake 7.5 mg: D&C Yellow No. 10 Aluminum Lake 10 mg: Dye Free Chemical Structure