Bacitracin is a polypeptide antibiotic produced by Bacillus licheniformis.

Disrupted bacterial cell wall synthesis at the level of peptidoglycan biosynthesis and isoprene metabolism.

Also used to study the biosynthesis of sterols and squalene.

It is suitable for the treatment of carbuncle furuncle, abscess, acne, purulent skin disease, Ami dysentery, gonococcus and meningococcus and other infectious diseases. Toxic to the kidneys.