Side-by-Side Comparison · 2026

Pexiganan vs Ponericin

Pexiganan vs Ponericin — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

Pexiganan
Antimicrobial Peptide

Pexiganan (MSI-78) is a synthetic analog of magainin-2, optimized for enhanced broad-spectrum antimicrobial activity and reduced hemolytic toxicity. It was developed by Magainin Pharmaceuticals (later Genaera) as a topical treatment for mildly infected diabetic foot ulcers....

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Ponericin
Antimicrobial Peptide

Ponericins are a family of antimicrobial peptides isolated from the venom of the ant Pachycondyla goeldii. They adopt alpha-helical conformations in membrane environments and display broad-spectrum antibacterial and insecticidal activity....

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Key Parameters
Parameter Pexiganan Ponericin
Category Antimicrobial Peptide Antimicrobial Peptide
Research Phase 3 (Failed 1999) Preclinical
Half-Life Hours (topical) Short
Typical Dose 0.8% cream topically N/A (research only)
Frequency Twice daily N/A
Route Topical cream Topical / Systemic (research)
FDA Status Not approved (failed Phase 3) Not approved

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Frequently Asked Questions
What is the difference between Pexiganan and Ponericin?
Pexiganan: Pexiganan (MSI-78) is a synthetic analog of magainin-2, optimized for enhanced broad-spectrum antimicrobial activity and reduced hemolytic toxicity. It was developed by Magainin Pharmaceuticals (later... Ponericin: Ponericins are a family of antimicrobial peptides isolated from the venom of the ant Pachycondyla goeldii. They adopt alpha-helical conformations in membrane environments and display broad-spectrum an...
Which has a longer half-life, Pexiganan or Ponericin?
Pexiganan half-life: Hours (topical). Ponericin half-life: Short.
Can you stack Pexiganan and Ponericin?
Pexiganan and Ponericin are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.