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Polysporin Triple

University Health Network, Toronto · FDA-approved active Small molecule

Polysporin Triple is a topical antibiotic combination that kills bacteria by inhibiting protein synthesis and cell wall integrity through multiple mechanisms.

Polysporin Triple is a topical antibiotic combination that kills bacteria by inhibiting protein synthesis and cell wall integrity through multiple mechanisms. Used for Prevention of infection in minor cuts, scrapes, and burns, Topical treatment of minor bacterial skin infections.

At a glance

Generic namePolysporin Triple
SponsorUniversity Health Network, Toronto
Drug classTopical antibiotic combination
TargetBacterial cell wall (bacitracin), bacterial ribosome (neomycin), bacterial cell membrane (polymyxin B)
ModalitySmall molecule
Therapeutic areaDermatology / Infection
PhaseFDA-approved

Mechanism of action

Polysporin Triple contains bacitracin, neomycin, and polymyxin B, three antibiotics with complementary mechanisms of action. Bacitracin inhibits bacterial cell wall synthesis, neomycin inhibits protein synthesis by binding to the 30S ribosomal subunit, and polymyxin B disrupts bacterial cell membranes. This triple combination provides broad-spectrum coverage against common skin pathogens.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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