Cefovecin provides 14 days of therapeutic activity in cats following a single 8 mg/kg SC injection, but persists in the body for approximately 65 days before 97% of the dose is eliminated. FDA DailyMed An…+1 This pharmacokinetic mismatch — therapeutic window far shorter than elimination — is a central stewardship concern, because any adverse reaction requires monitoring for the full 65-day elimination period. FDA DailyMed An…

The only labeled indication for cefovecin in cats is skin infections (wounds and abscesses) caused by susceptible strains of Pasteurella multocida. FDA DailyMed An… The 2023 AAHA Allergic Skin Disease guidelines list cefovecin at 8 mg/kg SC every 14 days as a first- or second-tier option for allergic skin disease. AAHA Clinical G… For botryomycosis caused by susceptible Staphylococcus aureus, cefovecin has been used at 8 mg/kg SC every 2 weeks for 8 weeks as adjunctive therapy following surgical excision. Journal of the…

Cefovecin is a World Health Organization "highest priority critically important" third-generation cephalosporin, and World Organisation for Animal Health guidelines explicitly discourage its use as a first-line antimicrobial. Journal of the… Despite this, cefovecin accounts for roughly one-third of all antimicrobials administered to cats. Journal of the… Veterinarians overestimate the difficulty of oral administration in cats and owner preference for an injectable, and owner convenience is not an appropriate justification for selecting a broader-spectrum, longer-acting drug over a narrower oral alternative. The Veterinary…+1

Cefovecin is not appropriate for feline pyelonephritis. As a highly protein-bound drug, free drug levels in serum do not reach the minimum inhibitory concentration for E. coli, and there are no Clinical and Laboratory Standards Institute breakpoints for cefovecin against Enterobacterales in tissue. The Veterinary…+1 Since E. coli is the predominant cause of pyelonephritis, cefovecin was administered to 35% of cats diagnosed with pyelonephritis in one large practice network — a prescribing pattern that raises direct efficacy concerns. The Veterinary…

For feline lower urinary tract infection (cystitis), cefovecin achieves high concentrations in urine and 81% of bacterial isolates from cats with lower urinary tract infection were susceptible in vitro. Irish Veterinar… However, it is broader spectrum and longer in duration than is needed for acute cystitis, where a 3–5 day course of a narrower first-line oral agent is the current recommendation. Journal of Feli… The median treatment duration when cefovecin was prescribed was 14 days — substantially longer than the recommended 3–5 days — and shorter oral courses reduce resistance selection pressure, adverse event risk, and owner pilling burden. Journal of Feli…

Key drug interactions require attention regardless of indication. Cefovecin displaces carprofen, furosemide, doxycycline, and ketoconazole from protein-binding sites in vitro, and concurrent use of any highly protein-bound drug — including NSAIDs, propofol, cardiac medications, anticonvulsants, and behavioral medications — risks adverse reactions. FDA DailyMed An… Cefovecin is not established as safe in cats under 4 months of age, or in breeding or lactating animals. FDA DailyMed An…

Would you like guidance on which first-line oral antimicrobials are recommended for feline skin infections or cystitis when cefovecin is being avoided?