Systemic disorder after Cefovecin (Convenia) in cats

77 reports to the FDA describe systemic disorder in cats given Cefovecin. That is 0.9% of all reports for this medicine, compared with 0.3% across reports for all cat medicines, so it is reported unusually often with this medicine.

77Reports

56%Marked serious

9.1%Recovered

38%Died or euthanised

1 daysTypical onset

How soon it started

Same day

24 38%

1–2 days

17 27%

3–7 days

10 16%

1–4 weeks

7 11%

Over a month

5 7.9%

How the animals did

Recovered

7 9.1%

Still unwell when reported

24 31%

Died

14 18%

Euthanised

15 19%

Not known

17 22%

Problems reported at the same time

28 36%

28 36%

27 35%

18 23%

13 17%

13 17%

13 17%

11 14%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

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.

Questions owners ask

Can Cefovecin cause systemic disorder in cats?: 77 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?: In half of the reports with dates, it started within 1 day of the first dose.
What should I do?: Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

All reported side effects of Cefovecin in cats · Medicines most reported with systemic disorder