Medicinehospital

Vasopressin

Hormone infusion that raises blood pressure in shock.

Clinical information

Common uses

raising blood pressure in vasodilatory shock
when fluids and catecholamines are not enough

Common side effects

reduced heart output and slow heartbeat
heart rhythm disturbances
low blood sodium
poor blood flow to heart, gut, skin or fingers

Cautions

can worsen heart function
reversible diabetes insipidus can follow treatment

Interactions

catecholamines (additive blood pressure rise)
indomethacin (prolongs effect)
ganglionic blockers and SIADH-causing drugs (stronger response)
drugs causing diabetes insipidus (weaker response)

Pregnancy: may trigger uterine contractions; doses may need raising

Reference information, not medical advice — always follow your doctor or pharmacist. Source: DailyMed, dailymed.nlm.nih.gov, Vasostrict (vasopressin) injection label, setid b1147beb-743e-4c62-8927-91192447f8b8 (accessed 2026-08-16)

Approved brands & formulations1

Brand name	Dosage form	Strength	Importer	Category
Vasopressin	Parenteral ( Injection )	20 units/ml	MFDA designated importers with Pre Authorization approval before import	hospital