Xeroform Petrolatum Impregnated Dressing Xeroform™ 4 X 4 Inch Knitted Gauze Bismuth Thiophanate (Xeroform) / Petrolatum / Mineral Oil / Parrafin Oil SterileA non adherent knitted gauze impregnated with a blend of petroleum, 3% Bismuth, mineral, and paraffin oils hese highly conformable, non occlusive dressings allow the wounds to breathe and are indicated for use in deep to shallow wounds with minimal exudate Maintains moist wound environment Primary dressing on low exuding wounds at stages 2, 3, or 4 Active ingredient 3% Bismuth reduces wound odor 25 per box, 4 boxes per case