Drug class

Bacitracin

Bacitracin is a specific cyclic polypeptide antibacterial agent rather than an umbrella therapeutic class, though it is commonly categorized under polypeptide antibiotics. Read more about Bacitracin

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About Bacitracin.

Bacitracin is a specific cyclic polypeptide antibacterial agent rather than an umbrella therapeutic class, though it is commonly categorized under polypeptide antibiotics.

It exerts bactericidal activity against primarily Gram-positive organisms by binding to undecaprenyl pyrophosphate, which inhibits the dephosphorylation and recycling of lipid carrier molecules essential for bacterial peptidoglycan cell wall synthesis.

In human clinical practice, it is utilized almost exclusively in topical and ophthalmic formulations—either alone or co-formulated with other antimicrobials—to prevent and treat superficial skin wounds, minor burns, cuts, and external ocular bacterial infections.

Systemic administration is generally avoided due to substantial risks of nephrotoxicity.