Unna-Z from Medline is an impregnated gauze bandage for use in compression and bandaging. This listing includes one roll. Features: Maintains a moist healing environment and provides light compression for venous leg ulcers Impregnated with zinc oxide or zinc oxide and calamine Inner plastic core for easy application Can be left in place for up to 7 days, depending on drainage Contraindicated for patients with a known sensitivity to zinc or calamine (Unna-Z with calamine only)