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VETERINARY TEAM REFERENCE · MEDICATION

Cefovecin

Cefovecin is a long-acting cephalosporin antibiotic. Convenia’s US label covers specified susceptible skin infections in dogs and cats; injection convenience is not evidence that it is the best antibiotic for every infection.

Long-acting cephalosporin antibacterialProduct-specific clinical reference

Updated October 16, 2026 · Sources and review status below

For veterinarians and veterinary staff. Product-label information is distinct from extra-label clinical practice. This is not a complete prescribing formulary or an automated interaction screen. Verify the current label, exact formulation, patient and species-specific clinical reference before use. Independent veterinary/pharmacy review remains pending.

Prescribing overview

Convenia is an injectable antibiotic with prolonged persistence; it cannot be withdrawn after administration.

Key prescribing checks

  • Do not use in patients with known allergy to cefovecin or beta-lactam antimicrobials. Unlike an oral course, a long-acting injection cannot be withdrawn after it has been administered.
  • Obtain appropriate diagnostic and susceptibility information. The label describes organisms against which it is not active, including Pseudomonas and enterococci; a laboratory result must be interpreted clinically.
  • Review age, renal status, concurrent protein-bound medications and the full precaution section. Because drug persists for an extended period, plans for adverse-event observation and clinical reassessment matter before injection.

Uses by species

Approval and evidence apply to the named product, species, route and indication. An extra-label use requires its own prescribing assessment; a human indication is not an animal approval.

Dogs

US veterinary label

Skin infections from susceptible S. intermedius or S. canis

Includes secondary superficial pyoderma, wounds and abscesses.

Use / indication source ↗

Cats

US veterinary label

Wounds/abscesses from susceptible P. multocida

Not an all-purpose infection indication.

Use / indication source ↗

Pharmacology & pharmacokinetics

Mechanism and clinical role

Beta-lactam inhibition of bacterial cell-wall synthesis.

Absorption, distribution, metabolism and elimination

Terminal half-life approximately 133 hours in dogs,166 hours in cats; highly protein-bound, mainly unchanged urinary elimination; persistence up to 65 days.

SAFETY REFERENCE · PRODUCT & SPECIES SPECIFIC

Contraindications & cautions

Contraindications identify circumstances where the source says a product should not be used. Precautions call for assessment or monitoring. Interactions identify combinations to review. They are distinct categories; this summary does not replace a full interaction check or the current product label.

Convenia

US subcutaneous canine/feline label.

Contraindications · when not to use

  • Known cefovecin or beta-lactam allergy; do not repeat after allergic reaction/anaphylaxis.

Precautions & monitoring

  • Prolonged clearance may require extended adverse-reaction management. Safety unestablished under four months, in breeding/lactating animals, or via IM/IV routes.

Safety sources checked: . Selected label information; independent veterinary or veterinary-pharmacy review remains pending. A label for dogs, cats, horses or humans does not establish safety for another species.

Adverse effects

Allergy/anaphylaxis and gastrointestinal illness can occur; prolonged adverse-event management may be necessary.

These are selected source-reported effects, not incidence estimates or an exhaustive list. Spontaneous postmarketing reports do not by themselves establish frequency or causality.

Dosing & administration

Verify the source before prescribing. The regimens below summarize selected veterinary product labels, not every accepted veterinary use. They are not automatic substitutions between brands or formulations. Renal/hepatic disease, concurrent therapy, age, indication and clinical response can require a different plan.
Selected product-label regimens — not a patient-specific prescription
Species & indicationLabeled regimenEligibility & source
DogsLabeled susceptible skin infectionsConvenia 80 mg/mL after reconstitution

8 mg/kg (3.6 mg/lb)

SC · Single injection; veterinarian may give a second for incomplete response

Maximum 2 injections

Therapeutic concentrations: S. intermedius 7 days; S. canis 14 days. Safety below 4 months unestablished.

Verify full dosing label ↗
CatsLabeled P. multocida skin infectionConvenia 80 mg/mL

8 mg/kg

SC · Single one-time injection

Therapeutic concentrations approximately 7 days

Safety below 4 months unestablished.

Verify full dosing label ↗

No IM/IV substitution.

Extra-label prescribing and food-animal residue requirements are separate from labeled regimens. FDA extra-label-use guidance ↗

Drug & supplement interactions

This is a selected interaction reference, not an automated or comprehensive combination checker. Reconcile prescription drugs, nonprescription products, supplements and recent treatment changes.

Convenia

US subcutaneous canine/feline label.

  • Protein-binding displacement may increase adverse reactions with highly bound medicines, including carprofen, furosemide, doxycycline and ketoconazole. Subsequent antimicrobial effects remain uncertain; diagnostic-test interference can occur.
Interaction source ↗

Monitoring

Culture first; reassess nonresponse within 3–4 days.

Client counseling

Report illness promptly.

This section supports the veterinary team's discharge discussion; it does not replace the product’s Client Information Sheet where one is required.

Storage & handling

Reconstitute and refrigerate according to label.

Brands, formulations & ingredient identity

Active ingredients

Cefovecin

Other searchable names: Cefovecin sodium

Convenia is supplied as a powder that is reconstituted for subcutaneous injection. Reconstitution, storage and post-mixing validity must follow its actual package instructions.

Cefovecin sodium is the salt name. Do not confuse this medicine with cefpodoxime, cephalexin or another cephalosporin whose name starts similarly.

Shared ingredients do not establish interchangeable concentrations, routes, release properties, species labeling or regional availability.

Convenia

Formulation
Reconstituted subcutaneous injection
Label / product scope
Dogs · Cats

Long-acting antibiotic with specified US skin-infection indications.

Product label / source ↗

References & review status

Clinical reference updated October 16, 2026. Independent veterinary or veterinary-pharmacy review not yet completed. Evidence gaps remain explicitly identified; this page does not claim equivalence to a comprehensive, professionally reviewed veterinary formulary.

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