Side-by-Side Comparison · 2026

Apamin vs Chlorotoxin

Apamin vs Chlorotoxin — 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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Chlorotoxin
Venom Peptide

Chlorotoxin is a 36-residue peptide toxin from the deathstalker scorpion (Leiurus quinquestriatus). Originally identified as a chloride channel blocker, it was discovered to bind selectively and with high affinity to glioma cells but not normal brain tissue, through interaction w...

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Key Parameters
Parameter Apamin Chlorotoxin
Category Venom Peptide Venom Peptide
Research Preclinical/Research Tool Phase 2
Half-Life ~30 min (plasma) Hours (disulfide stabilized)
Typical Dose Research only (ug/kg range) N/A
Frequency N/A N/A
Route IV, SC (research) IV (imaging agent); Topical (research)
FDA Status No approval Investigational (BLZ-100 Phase 2)

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Frequently Asked Questions
What is the difference between Apamin and Chlorotoxin?
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 ... Chlorotoxin: Chlorotoxin is a 36-residue peptide toxin from the deathstalker scorpion (Leiurus quinquestriatus). Originally identified as a chloride channel blocker, it was discovered to bind selectively and with ...
Which has a longer half-life, Apamin or Chlorotoxin?
Apamin half-life: ~30 min (plasma). Chlorotoxin half-life: Hours (disulfide stabilized).
Can you stack Apamin and Chlorotoxin?
Apamin and Chlorotoxin 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.