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Peptide library / Hormones & metabolism / Vasopressin

FDA-approvedHormones & metabolism

Vasopressin

A nine amino acid hormone used to raise blood pressure in vasodilatory shock.

Body system
Hormones & metabolism
Status
FDA-approved
Strongest evidence
FDA approved
Also known as
Vasostrict

Effects studied or claimed

What it is used or promoted for, and where each effect has actually been seen

  • Vasodilatory shockFDA approved

How it is thought to work

Vasopressin tightens blood vessels through V1 receptors and holds water through V2 receptors in the kidney.

What the evidence shows

Evidence from septic shock trials supports its use as an add-on to norepinephrine to reduce other pressor doses.

Safety and unknowns

Reduced blood flow to the gut, skin and fingers can occur at high doses.

Regulatory status

FDA-approved as Vasostrict in 2014.

Regulatory status changes quickly. This entry was last reviewed on 27 October 2026. Confirm current status with the FDA before relying on it.

Sources

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General information, not medical advice. Do not buy or inject unregulated peptides.