Table 1.

Drugs used to treat feline herpesvirus type 1 infection in cats.

Generic name	Concentration/dose	Route	Dosing interval (h)	Action
Cidofovir (compounded solution)	0.5%	Ophthalmic	12	Acyclic nucleoside phosphonate, inhibits viral DNA synthesis
Trifluridine (solution)	1%	Ophthalmic	4–6	Fluorinated pyrimidine nucleoside, inhibits viral DNA synthesis
Ganciclovir (ointment)	0.15%	Ophthalmic	4–6	Guanosine analog, inhibits viral DNA synthesis
Idoxuridine (compounded solution)	0.1%	Ophthalmic	4–6	Thymidine analog, inhibits viral DNA synthesis
Vidarabine (compounded ointment)	3%	Ophthalmic	4–6	Adenosine analog, inhibits viral DNA synthesis
Acyclovir (ointment)	3%	Ophthalmic	4–6	Purine analog, inhibits viral DNA synthesis
Famciclovir (tablet)	40 mg/kg	Oral	8	Metabolized to penciclovir, acyclic nucleoside analog, inhibits viral polymerase and DNA synthesis