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Clofazimine

Prescription
Antimycobacterial / Riminophenazine
Last reviewed 21 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
1 available
Formulations
1

Mechanism of action

Binds to mycobacterial DNA and inhibits template function, blocking replication. Also generates reactive oxygen species within macrophages and has anti-inflammatory/immunomodulatory properties. Extremely lipophilic with tissue accumulation.

At a glance

Class
Antimycobacterial / Riminophenazine
Schedule
Prescription
Storage
Store at room temperature, protect from moisture

Dosing

🐕

Dog

Used for mycobacterial infections (M
Dose
1–4 mg/kg
Route
PO
Frequency
q24h
🐈

Cat

Used for feline leprosy and other mycobacterial infections
Dose
8–25 mg/cat
Route
PO
Frequency
q24h
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 moisture

Safety

Monitoring parameters

Hepatic enzymes q3 monthsGI toleranceClinical/culture responseSkin changes (expected)
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

Lamprene

FAQs

Frequently asked questions

What is Clofazimine?
Clofazimine is a antimycobacterial / riminophenazine used in pets. Binds to mycobacterial DNA and inhibits template function, blocking replication. Also generates reactive oxygen species within macrophages and has anti-inflammatory/immunomodulatory properties. Extremely lipophilic with tissue accumulation.
What is Clofazimine used for in pets?
Clofazimine is used in veterinary medicine for: Used for mycobacterial infections (M; Used for feline leprosy and other mycobacterial infections.
What is the Clofazimine dose for dogs?
For dogs, Clofazimine is typically dosed as follows — Used for mycobacterial infections (M: 1–4 mg/kg PO q24h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Clofazimine dose for cats?
For cats, Clofazimine is typically dosed as follows — Used for feline leprosy and other mycobacterial infections: 8–25 mg/cat PO q24h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
Does Clofazimine need a prescription?
Yes. Clofazimine 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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