SPL Set ID: 471568fd-0562-4c66-90f6-564f0f5ea067

Warfarin sodium, USP is 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 C19H15NaO4, 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. Each warfarin sodium tablet, USP intended for oral administration contains warfarin sodium clathrates equivalent to 1 mg or 2 mg or 2.5 mg or 3 mg or 4 mg or 5 mg or 6 mg or 7.5 mg or 10 mg of warfarin sodium. In addition each tablet contains the inactive ingredients lactose monohydrate, starch, pregelatinised starch, hydroxypropyl cellulose, starlac and magnesium stearate. Additionally each 1 mg tablet contains: D&C Red #30 aluminum lake 2 mg tablet contains: FD&C Red #40 aluminum lake and FD&C Blue#2 2.5 mg tablet contains: D&C Yellow # 10 aluminum lake and FD&C Blue#2 3 mg tablet contains: FD&C Yellow # 6 aluminum lake, FD&C Blue#2 and FD&C Red # 40 aluminum lake 4 mg tablet contains: FD&C Blue#2 5 mg tablet contains: FD&C Yellow # 6 aluminum lake 6 mg tablet contains: FD&C Yellow # 6 aluminum lake and FD&C Blue #2 7.5 mg tablet contains: D&C Yellow # 10 aluminum lake and FD&C Yellow # 6 aluminum lake 10 mg tablet is dye free