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Nitroprusside (Sodium)

Prescription
Direct Vasodilator (Arterial + Venous)
Last reviewed 21 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
2 available
Formulations
1

Mechanism of action

Releases nitric oxide spontaneously in blood, activating guanylyl cyclase in both arterial and venous smooth muscle. Balanced vasodilator reducing both preload AND afterload equally. Ultra-rapid onset (<2 min) and offset (1–10 min).

At a glance

Class
Direct Vasodilator (Arterial + Venous)
Schedule
Prescription
Storage
Protect from light — wrap IV bag and tubing in foil; reconstituted solution has faint brown color (normal); discard if dark brown/blue/green

Dosing

🐕

Dog

Used for hypertensive emergencies, acute decompensated CHF, and controlled hypot
Dose
0.5–5 mcg/kg
Route
IV CRI only
Frequency
Continuous
🐈

Cat

Same as dogs
Dose
0.5–5 mcg/kg
Route
IV CRI
Frequency
Continuous
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

Formulations

💊

Other — 1

Strength

Storage

Protect from light — wrap IV bag and tubing in foil; reconstituted solution has faint brown color (normal); discard if dark brown/blue/green

Safety

Monitoring parameters

Continuous direct arterial BP (mandatory)Heart rateThiocyanate levels if use >48h (keep <10 mg/dL)Lactate (cyanide toxicity sign)Mixed venous PO2
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

Interactions

No documented interactions.

Brands

Other markets

Nipride
Nitropress

FAQs

Frequently asked questions

What is Nitroprusside (Sodium)?
Nitroprusside (Sodium) is a direct vasodilator (arterial + venous) used in pets. Releases nitric oxide spontaneously in blood, activating guanylyl cyclase in both arterial and venous smooth muscle. Balanced vasodilator reducing both preload AND afterload equally. Ultra-rapid onset (<2 min) and offset (1–10 min).
What is Nitroprusside (Sodium) used for in pets?
Nitroprusside (Sodium) is used in veterinary medicine for: Used for hypertensive emergencies, acute decompensated CHF, and controlled hypot; Same as dogs.
What is the Nitroprusside (Sodium) dose for dogs?
For dogs, Nitroprusside (Sodium) is typically dosed as follows — Used for hypertensive emergencies, acute decompensated CHF, and controlled hypot: 0.5–5 mcg/kg IV CRI only Continuous. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Nitroprusside (Sodium) dose for cats?
For cats, Nitroprusside (Sodium) is typically dosed as follows — Same as dogs: 0.5–5 mcg/kg IV CRI Continuous. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
Does Nitroprusside (Sodium) need a prescription?
Yes. Nitroprusside (Sodium) is a prescription medication and should only be administered under veterinary supervision.
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

References

References

The PetCare.AI drug reference is built from 13 authoritative sources cited across 580 drug monographs.

Textbooks & handbooks — 5

  • Plumb's Veterinary Drug Handbook
  • Withrow & MacEwen's Small Animal Clinical Oncology
  • Merck Veterinary Manual
  • NRC Nutrient Requirements of Dogs and Cats
  • Veterinary Pharmacology and Therapeutics (Riviere & Papich)

Clinical guidelines & consensus — 4

  • ASPCA Animal Poison Control Center Guidelines
  • AAHA Diabetes Management Guidelines
  • ASPCA Poison Control Guidelines
  • RECOVER CPR Guidelines

Journals & peer-reviewed studies — 2

  • EPIC Study (J Vet Intern Med 2016)
  • JVIM FAT CAT Study

Regulatory & approvals — 1

  • CDSCO Veterinary Drug Approval Registry (1969–2026)

Databases — 1

  • Washington State University VCPL MDR1 Database
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