Prodrug hydrolyzed to oseltamivir carboxylate, which competitively inhibits influenza neuraminidase, preventing release of newly formed viral particles from infected cells. In veterinary medicine, used off-label for parvovirus (reduces bacterial translocation, not antiviral).
At a glance
Class
Neuraminidase Inhibitor / Antiviral
Storage
Store at room temperature; suspension stable 17 days at room temperature or 10 weeks refrigerated
Dosing
Off-label for canine parvovirus — proposed mechanism is reducing bacterial trans
Off-label for feline panleukopenia (parvovirus)
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 improvement (vomiting, diarrhea, WBC recovery)GI toleranceRenal 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.
FAQs
Frequently asked questions
›What is Oseltamivir?
Oseltamivir is a neuraminidase inhibitor / antiviral used in pets. Prodrug hydrolyzed to oseltamivir carboxylate, which competitively inhibits influenza neuraminidase, preventing release of newly formed viral particles from infected cells. In veterinary medicine, used off-label for parvovirus (reduces bacterial translocation, not antiviral).
›What is Oseltamivir used for in pets?
Oseltamivir is used in veterinary medicine for: Off-label for canine parvovirus — proposed mechanism is reducing bacterial trans; Off-label for feline panleukopenia (parvovirus).
›What is the Oseltamivir dose for dogs?
For dogs, Oseltamivir is typically dosed as follows — Off-label for canine parvovirus — proposed mechanism is reducing bacterial trans: 2 mg/kg PO q12h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›What is the Oseltamivir dose for cats?
For cats, Oseltamivir is typically dosed as follows — Off-label for feline panleukopenia (parvovirus): 2 mg/kg PO q12h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›Does Oseltamivir need a prescription?
Yes. Oseltamivir 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