Side-by-Side Comparison · 2026

Apamin vs Mastoparan

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

Apamin
Venom Peptide

Apamin is an 18-amino acid peptide neurotoxin from bee venom (Apis mellifera), notable as one of the smallest naturally occurring neurotoxic peptides. This pharmacological selectivity has made apamin an invaluable tool for dissecting SK channel contributions to neuronal excitabil...

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Mastoparan
Venom Peptide

Mastoparan is a 14-amino acid amphipathic peptide from the venom of the wasp Vespula lewisii and related species. It directly activates heterotrimeric Gi/Go proteins independently of cell surface receptors, making it a unique pharmacological tool for dissecting G protein-coupled ...

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Key Parameters
Parameter Apamin Mastoparan
Category Venom Peptide Venom Peptide
Research Preclinical/Research Tool Preclinical/Research Tool
Half-Life ~30 min (plasma) < 15 min (plasma)
Typical Dose Research only (ug/kg range) Research only
Frequency N/A N/A
Route IV, SC (research) IV, local (research)
FDA Status No approval No approval

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Frequently Asked Questions
What is the difference between Apamin and Mastoparan?
Apamin: Apamin is an 18-amino acid peptide neurotoxin from bee venom (Apis mellifera), notable as one of the smallest naturally occurring neurotoxic peptides. This pharmacological selectivity has made apamin ... Mastoparan: Mastoparan is a 14-amino acid amphipathic peptide from the venom of the wasp Vespula lewisii and related species. It directly activates heterotrimeric Gi/Go proteins independently of cell surface rece...
Which has a longer half-life, Apamin or Mastoparan?
Apamin half-life: ~30 min (plasma). Mastoparan half-life: < 15 min (plasma).
Can you stack Apamin and Mastoparan?
Apamin and Mastoparan 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.