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Vasopressin

Vasopressin is an endogenous peptide hormone whose vascular and water-retaining actions also support specific critical-care drug uses.

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At a glance

Evidence stage
Approved use
Regulatory status
VASOSTRICT is FDA-approved to increase blood pressure in adults with vasodilatory shock who remain hypotensive despite fluids and catecholamines.
Research context
Vasopressin is an endogenous peptide hormone whose vascular and water-retaining actions also support specific critical-care drug uses.

What this is

  • Vasopressin is an endogenous peptide hormone whose vascular and water-retaining actions also support specific critical-care drug uses.

What this isn't

  • A recommendation to use, prepare, combine, or administer a product
  • Evidence that a related molecule or a differently formulated product has the same effects

Key terms

Vasopressin is an endogenous peptide hormone whose vascular and water-retaining actions also support specific critical-care drug uses.

Vascular V1-receptor activity constricts blood vessels, while renal V2-receptor activity promotes water retention. In vasodilatory shock, the intended effect is restoration of vascular tone when blood pressure remains inadequate. This prescription critical-care role is distinct from desmopressin's more selective antidiuretic uses and from experimental discussions of social behavior. VASOSTRICT pharmacology and indication.

Evidence limits

How to read the evidence

A blood-pressure response is not equivalent to improved survival, restored kidney function, or resolution of the cause of shock. VANISH studied a specific early septic-shock strategy, while the label covers a defined refractory vasodilatory-shock population. Those differences should remain visible when comparing the trial with the approved indication; neither supports a wellness or cognitive-enhancement claim. Trial population and conclusion; label boundaries.

Sources appraised 2026-10-28. Educational information; not medical advice. Study findings apply to the populations, preparations and outcomes described.

External sources and citations

  1. VASOSTRICT prescribing information
  2. VANISH randomized septic-shock trial

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