Side-by-Side Comparison · 2026

Eledoisin vs Physalaemin

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

Eledoisin
Neuropeptide / Tachykinin

Eledoisin is an 11-residue neuropeptide originally isolated from the salivary glands of two Mediterranean octopus species (Eledone moschata and E. It belongs to the tachykinin family, characterized by the C-terminal sequence Phe-X-Gly-Leu-Met-NH2....

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Physalaemin
Neuropeptide / Tachykinin

Physalaemin is an 11-residue tachykinin peptide first isolated from the skin of the South American frog Physalaemus fuscumaculatus. It shares the conserved tachykinin C-terminal sequence Phe-X-Gly-Leu-Met-NH2 with substance P, eledoisin, and kassinin....

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Key Parameters
Parameter Eledoisin Physalaemin
Category Neuropeptide / Tachykinin Neuropeptide / Tachykinin
Research Preclinical Preclinical
Half-Life Short (minutes) Short (minutes)
Typical Dose N/A (research) N/A (research)
Frequency N/A N/A
Route IV / SC (research) IV / SC (research)
FDA Status Not approved Not approved

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Frequently Asked Questions
What is the difference between Eledoisin and Physalaemin?
Eledoisin: Eledoisin is an 11-residue neuropeptide originally isolated from the salivary glands of two Mediterranean octopus species (Eledone moschata and E. It belongs to the tachykinin family, characterized by... Physalaemin: Physalaemin is an 11-residue tachykinin peptide first isolated from the skin of the South American frog Physalaemus fuscumaculatus. It shares the conserved tachykinin C-terminal sequence Phe-X-Gly-Leu...
Which has a longer half-life, Eledoisin or Physalaemin?
Eledoisin half-life: Short (minutes). Physalaemin half-life: Short (minutes).
Can you stack Eledoisin and Physalaemin?
Eledoisin and Physalaemin 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.