Vasopressin (USP)
Vasopressin is a synthetic form of the natural hormone antidiuretic hormone (ADH) that helps regulate water retention and blood vessel constriction in the body. It is used in critical care settings to treat vasodilatory shock, such as septic shock, and can also be used in the management of diabetes insipidus and bleeding from esophageal varices. This medication is typically administered in hospital settings by healthcare professionals.
Vasopressin is a hormone medication used primarily in critical care to raise blood pressure in shock states and manage water balance disorders.
Key facts at a glance
- RxNorm
- 11149
- Generic
- Vasopressin (Usp)
- Class
- unclassified
- Brands
- Vasostrict
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- injection, solution
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Vasopressin is used to treat vasodilatory shock (particularly septic shock), diabetes insipidus (a condition causing excessive urination), and bleeding esophageal varices. It is also sometimes used as an adjunct in cardiac arrest situations.
Vasopressin acts on V1 receptors in blood vessels to cause vasoconstriction, helping to raise blood pressure. It also acts on V2 receptors in the kidneys to promote water reabsorption, reducing urine output.
Vasopressin is administered intravenously in controlled hospital settings due to its potent effects. It may cause side effects such as reduced blood flow to extremities, increased heart rate, or fluid overload. Close monitoring of blood pressure and fluid balance is essential during treatment.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 31, 2026. · Read our editorial policy