Inhibits arabinosyl transferase (embB gene product), blocking arabinogalactan synthesis in the mycobacterial cell wall. Bacteriostatic. Used in combination therapy to prevent resistance development of rifampicin and isoniazid.
At a glance
Class
Antimycobacterial Agent
Storage
Store at room temperature below 30°C, protect from moisture
Dosing
Used for Mycobacterium tuberculosis complex and M
Used for feline mycobacterial infections (M
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 →Safety
Visual assessment (difficult in animals — fundic exam)Renal function (dose adjustment)Hepatic enzymesClinical/culture response
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.
FAQs
Frequently asked questions
›What is Ethambutol?
Ethambutol is a antimycobacterial agent used in pets. Inhibits arabinosyl transferase (embB gene product), blocking arabinogalactan synthesis in the mycobacterial cell wall. Bacteriostatic. Used in combination therapy to prevent resistance development of rifampicin and isoniazid.
›What is Ethambutol used for in pets?
Ethambutol is used in veterinary medicine for: Used for Mycobacterium tuberculosis complex and M; Used for feline mycobacterial infections (M.
›What is the Ethambutol dose for dogs?
For dogs, Ethambutol is typically dosed as follows — Used for Mycobacterium tuberculosis complex and M: 15 mg/kg PO q24h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›What is the Ethambutol dose for cats?
For cats, Ethambutol is typically dosed as follows — Used for feline mycobacterial infections (M: 15 mg/kg PO q24h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›Does Ethambutol need a prescription?
Yes. Ethambutol 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