Cefovecin (Convenia) side effects in cats
8,685 reports sent to the FDA between 2008 and 2026 involve Cefovecin in cats. The most reported problems were loss of appetite, lethargy, vomiting. 42% were marked serious, and where it was recorded, signs eased after stopping the medicine in 33% of cases.
About this medicine
Cefovecin a long-acting antibiotic injection.
Products with this ingredient include Convenia. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.
Most reported side effects
Share = percentage of this medicine's reports that mention the problem. One report can list several problems.
Reports that it didn't work
Some reports are about the medicine not working (for example a cat still getting fleas or heartworm), not about a side effect.
How soon problems started
Time from the first dose to the first sign, where both dates were reported (6,524 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Domestic Shorthair 4,382 reports
- Domestic 1,248 reports
- Domestic Longhair 607 reports
- Cat (other) 453 reports
- Domestic Mediumhair 386 reports
- Siamese 217 reports
- Persian 120 reports
- Maine Coon 118 reports
- Ragdoll 88 reports
- Himalayan 65 reports