Side-by-Side Comparison · 2026

Conotoxin vs Melittin

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

Conotoxin
Venom Peptide

Conotoxins (conopeptides) are a diverse superfamily of small, disulfide-rich peptide toxins produced by predatory cone snails (Conus species). With >10,000 predicted sequences across ~700 Conus species, conotoxins are an extraordinary reservoir of pharmacologically selective tool...

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Melittin
Venom Peptide

Melittin is the primary cytolytic component of bee venom (Apis mellifera), comprising ~50% of dry venom weight. It is a 26-amino acid amphipathic, cationic peptide that forms an alpha-helix in membrane environments and disrupts lipid bilayers via a detergent-like mechanism....

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Key Parameters
Parameter Conotoxin Melittin
Category Venom Peptide Venom Peptide
Research FDA Approved (ziconotide) Preclinical
Half-Life Hours (intrathecal; ziconotide ~4-6 h plasma) < 30 min (plasma)
Typical Dose Ziconotide: 0.1-0.8 mcg/hr intrathecal (titrated) Research only
Frequency Continuous intrathecal infusion N/A
Route Intrathecal (ziconotide); IV (research) IV, topical (research)
FDA Status Ziconotide (omega-conotoxin analog) FDA approved (Prialt) No approval

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Frequently Asked Questions
What is the difference between Conotoxin and Melittin?
Conotoxin: Conotoxins (conopeptides) are a diverse superfamily of small, disulfide-rich peptide toxins produced by predatory cone snails (Conus species). With >10,000 predicted sequences across ~700 Conus specie... Melittin: Melittin is the primary cytolytic component of bee venom (Apis mellifera), comprising ~50% of dry venom weight. It is a 26-amino acid amphipathic, cationic peptide that forms an alpha-helix in membran...
Which has a longer half-life, Conotoxin or Melittin?
Conotoxin half-life: Hours (intrathecal; ziconotide ~4-6 h plasma). Melittin half-life: < 30 min (plasma).
Can you stack Conotoxin and Melittin?
Conotoxin and Melittin 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.