Head to head
Desmopressin against Vasopressin
The natural hormone and the analogue built to keep one of its two effects. Vasopressin is approved to raise blood pressure in critically ill patients; desmopressin keeps the water retention and drops the vascular action, which is why it can be used at home for bedwetting and diabetes insipidus.
Column A
DesmopressinDesmopressin (DDAVP, vasopressin analogue)
An FDA-approved vasopressin analogue for diabetes insipidus, bedwetting, and certain bleeding disorders.
Column B
VasopressinVasopressin (antidiuretic hormone, AVP)
The natural water-retention hormone, FDA-approved as a drug to raise blood pressure in critically ill patients.
Side by side, on the facts we can check
| Attribute | Desmopressin | Vasopressin |
|---|---|---|
| Category | Hormone | Hormone |
| FDA status | FDA-approved (DDAVP) for multiple indications | FDA-approved (Vasostrict) for vasodilatory shock |
| Half-life | ~1.5-3.5 hours | ~10-20 minutes |
| Molecular weight | 1,069.2 Da | 1,084.2 Da |
| Mechanism | Selectively activates V2 receptors to concentrate urine and release stored clotting factor VIII and von Willebrand factor. | Activates V2 receptors in the kidney to retain water and V1 receptors on blood vessels to raise blood pressure. |
| Human studies cited | 2 | 2 |
| Legal status, US | FDA-approved, prescription only | FDA-approved, prescription only |
Frequently asked questions
What is the difference between Desmopressin and Vasopressin?
Desmopressin: An FDA-approved vasopressin analogue for diabetes insipidus, bedwetting, and certain bleeding disorders. Vasopressin: The natural water-retention hormone, FDA-approved as a drug to raise blood pressure in critically ill patients.
Which has stronger research evidence, Desmopressin or Vasopressin?
This database does not grade compounds. It counts what was run in people: 2 of the 4 studies cited on the Desmopressin profile were human work, against 2 of 2 for Vasopressin. Those counts are of our own citation lists and understate any larger literature, and neither is a recommendation.
Are Desmopressin and Vasopressin FDA-approved?
Desmopressin: FDA-approved (DDAVP) for multiple indications. Vasopressin: FDA-approved (Vasostrict) for vasodilatory shock.
Reviewed Sep 2026. This page sets two published records side by side. It is educational, it is not medical advice, and it contains no dosing protocols or recommendations for personal use.