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Flumethasone

Prescription
Potent Long-Acting Glucocorticoid
Last reviewed 21 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
1 available
Formulations
1

Mechanism of action

Highly potent synthetic fluorinated glucocorticoid with approximately 15x the anti-inflammatory potency of cortisol and negligible mineralocorticoid activity. Very long biological half-life (~36h in dogs).

At a glance

Class
Potent Long-Acting Glucocorticoid
Schedule
Prescription
Storage
Store at room temperature, protect from light

Dosing

🐕

Dog

Very potent — small doses required
Dose
0.0625–0.25 mg/dog
Route
IV, IM
Frequency
q24h initially, taper
🐈

Cat

Same as dogs
Dose
0.03–0.125 mg/cat
Route
IV, IM
Frequency
q24h initially
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

Store at room temperature, protect from light

Safety

Monitoring parameters

Blood glucoseBody weightSigns of infectionAdrenal function
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

Flucort

FAQs

Frequently asked questions

What is Flumethasone?
Flumethasone is a potent long-acting glucocorticoid used in pets. Highly potent synthetic fluorinated glucocorticoid with approximately 15x the anti-inflammatory potency of cortisol and negligible mineralocorticoid activity. Very long biological half-life (~36h in dogs).
What is Flumethasone used for in pets?
Flumethasone is used in veterinary medicine for: Very potent — small doses required; Same as dogs.
What is the Flumethasone dose for dogs?
For dogs, Flumethasone is typically dosed as follows — Very potent — small doses required: 0.0625–0.25 mg/dog IV/IM q24h initially, taper. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Flumethasone dose for cats?
For cats, Flumethasone is typically dosed as follows — Same as dogs: 0.03–0.125 mg/cat IV/IM q24h initially. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
Does Flumethasone need a prescription?
Yes. Flumethasone 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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