Fluorinated pyrimidine nucleoside that is phosphorylated and incorporated into both viral and host DNA, inhibiting thymidylate synthase and viral DNA polymerase. Most potent topical antiviral but also most toxic to corneal epithelium.
At a glance
Class
Ophthalmic Antiviral (Nucleoside Analog)
Storage
Refrigerate 2–8°C; discard 28 days after opening
Dosing
Canine herpesvirus keratitis is rare
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
Corneal lesion responseCorneal epithelial health (toxicity signs)Limit treatment to 21 days then reassess
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 Trifluridine Ophthalmic?
Trifluridine Ophthalmic is a ophthalmic antiviral (nucleoside analog) used in pets. Fluorinated pyrimidine nucleoside that is phosphorylated and incorporated into both viral and host DNA, inhibiting thymidylate synthase and viral DNA polymerase. Most potent topical antiviral but also most toxic to corneal epithelium.
›What is Trifluridine Ophthalmic used for in pets?
Trifluridine Ophthalmic is used in veterinary medicine for: Canine herpesvirus keratitis is rare; Used for FHV-1 keratitis.
›What is the Trifluridine Ophthalmic dose for dogs?
For dogs, Trifluridine Ophthalmic is typically dosed as follows — Canine herpesvirus keratitis is rare: undefined undefined Ophthalmic N/A. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›What is the Trifluridine Ophthalmic dose for cats?
For cats, Trifluridine Ophthalmic is typically dosed as follows — Used for FHV-1 keratitis: undefined undefined Ophthalmic q4–6h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›Does Trifluridine Ophthalmic need a prescription?
Yes. Trifluridine Ophthalmic 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