About vasopressin
Antidiuretic hormone and vasopressor
Used for
- Raises blood pressure in adults with septic shock despite fluids and other vasopressors.
- Treats certain cases of diabetes insipidus.
Usual adult dose
Septic shock: usually continuous IV infusion, starting at 0.01 units/minute; dosing is adjusted in hospital. Diabetes insipidus dosing varies by route and situation.
Common side effects
- Reduced blood flow to the heart, intestines, skin, or limbs
- Abnormal heartbeat
- Low sodium levels
- Pale or cold skin
Important warnings
- For monitored use by healthcare professionals; infusion errors can be dangerous.
- Can cause severe narrowing of blood vessels and tissue injury.
- Monitor blood pressure, heart rhythm, sodium, and signs of poor circulation.
- Use caution with heart or blood vessel disease and kidney problems.
Pregnancy
Use only when clinically necessary; it may affect uterine contractions and blood flow. The treating team weighs risks and benefits.
Breastfeeding
Information is limited. Because vasopressin is a natural peptide, transfer into milk and infant absorption are expected to be low.
Interactions
- Medicines that raise blood pressure may increase vasopressin effects.
- Medicines that lower sodium can increase the risk of hyponatremia.
- Lithium and demeclocycline may reduce vasopressin's antidiuretic effect.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.