ExoticRx · exoticrx.com/drugs/foscarnet
US brand names:Foscavir
Foscarnet is dosed at 40–60 mg/kg IV q8h (induction) in cats, per Plumb's Veterinary Drug Handbook, 9th Ed. Verify against current literature before clinical use.
Directly inhibits viral DNA polymerase and reverse transcriptase by blocking the pyrophosphate binding site. No need for viral kinase activation.
Highly nephrotoxic. Electrolyte disturbances (hypocalcemia, hypomagnesemia). Must pre-hydrate. Penile ulceration reported.
Species references:All Cat (Domestic) drugsAll Dog (Domestic) drugs
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
A dog/cat sample is shown here. Cited dosing for all 2 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.
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View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.