AMD Antimicrobial Dressings contain PHMB (Polyhexamethylene Biguanide). Reduce bacterial penetration through the dressing. Resists bacterial colonization within the dressing. Broad-spectrum effectiveness provides protection against gram negative, gram positive and fungi/yeast microorganisms including MRSA and VRE. Limits cross-contamination from patient to the environment. Sterile.- Kerlix AMD Roll, 4" x 4.1 yds, Sterile in Soft Pouch, 6-Ply, 100/cs (Continental US Only)