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Vasopressin (Vasostrict) Peptide
Nonapeptide hormone used for vasodilatory shock.
What is Vasopressin (Vasostrict)?
Vasopressin (Vasostrict) is a vasopressor · hormonal peptide studied for septic shock and cardiac arrest (historical). Below is an educational overview of Vasopressin (Vasostrict) peptide benefits, mechanism, common research protocols, dosage references, and known side effects.
Plain-Language Label Highlights
Brand names: Vasostrict, Pitressin
Vasodilatory shock (e.g., septic shock) to raise blood pressure when fluids aren't enough.
An IV hormone used in the ICU to tighten blood vessels and raise dangerously low blood pressure.
- •Headache
- •Abdominal cramping
- •Tremor
- •Nausea
- •Tissue ischemia (skin, gut, fingers)
- •Heart attack / arrhythmia
- •Severe hyponatremia
- •Known hypersensitivity to vasopressin
- •Use cautiously in coronary artery disease and peripheral vascular disease
Educational summary of the FDA prescribing information. Not a substitute for the full label or medical advice. Always discuss with a licensed prescriber.
Vasopressin (Vasostrict) Mechanism of Action
Endogenous nonapeptide that activates V1 vascular receptors to cause vasoconstriction and V2 renal receptors for water reabsorption. Used to raise blood pressure in catecholamine-resistant shock.
Vasopressin (Vasostrict) Research Areas & Benefits
Vasopressin (Vasostrict) Dosage & Common Research Protocols
0.01–0.04 units/min IV infusion.
Protocols summarized for educational reference from published research. Not dosing guidance.
Vasopressin (Vasostrict) Studies & Cited Research
VASST trial
Vasopressin added to norepinephrine did not reduce mortality overall but benefited less severe septic shock.
Why we trust this source: Published in a peer-reviewed scientific journal with editorial and reviewer oversight.
Citations are linked to PubMed, Google Scholar, and Crossref searches so you can verify the source independently. All references are reviewed during our editorial passes (last reviewed June 1, 2026).
Vasopressin (Vasostrict) Side Effects & Safety Considerations
- •FDA-approved.
- •Ischemic complications possible at high doses.
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Educational Information Only — Not Medical Advice
All content on this page is for educational and informational purposes only. It is not medical advice, diagnosis, or treatment. We make no claims that any peptide can diagnose, treat, cure, or prevent any disease. Peptides discussed are not FDA-approved for the indications listed unless explicitly stated otherwise.
Always consult a licensed healthcare provider before beginning any wellness protocol. Statements have not been evaluated by the FDA. Compounded preparations are subject to applicable state and federal regulations. Availability, eligibility, and pricing may vary.
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