Interferes with pyruvate:ferredoxin oxidoreductase (PFOR) enzyme-dependent electron transfer reaction, disrupting anaerobic energy metabolism of protozoa and anaerobic bacteria.
At a glance
Class
Antiprotozoal / Anthelmintic
Storage
Store at room temperature; suspension stable for 7 days at room temperature
Dosing
Used for Giardia, Cryptosporidium, and some helminth infections
Limited feline data; extrapolated from canine use
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
Clinical responseGI toleranceFecal exam for parasite clearance
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 Nitazoxanide?
Nitazoxanide is a antiprotozoal / anthelmintic used in pets. Interferes with pyruvate:ferredoxin oxidoreductase (PFOR) enzyme-dependent electron transfer reaction, disrupting anaerobic energy metabolism of protozoa and anaerobic bacteria.
›What is Nitazoxanide used for in pets?
Nitazoxanide is used in veterinary medicine for: Used for Giardia, Cryptosporidium, and some helminth infections; Limited feline data; extrapolated from canine use.
›What is the Nitazoxanide dose for dogs?
For dogs, Nitazoxanide is typically dosed as follows — Used for Giardia, Cryptosporidium, and some helminth infections: 25–75 mg/kg PO q24h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›What is the Nitazoxanide dose for cats?
For cats, Nitazoxanide is typically dosed as follows — Limited feline data; extrapolated from canine use: 25 mg/kg PO q24h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›Does Nitazoxanide need a prescription?
Yes. Nitazoxanide 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