Intentional misuse after Cefovecin (Convenia) in cats

243 reports to the FDA describe intentional misuse in cats given Cefovecin. That is 2.8% of all reports for this medicine, compared with 0.5% across reports for all cat medicines, so it is reported unusually often with this medicine.

243Reports

77%Marked serious

10%Recovered

23%Died or euthanised

3 daysTypical onset

How soon it started

Same day

75 32%

1–2 days

32 14%

3–7 days

42 18%

1–4 weeks

47 20%

Over a month

38 16%

How the animals did

Recovered

25 10%

Still unwell when reported

148 61%

Died

36 15%

Euthanised

19 7.8%

Not known

15 6.2%

Problems reported at the same time

Loss of appetite

83 34%

Lethargy

73 30%

Didn't work as expected

61 25%

54 22%

41 17%

27 11%

25 10%

25 10%

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 intentional misuse in cats?: 243 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 3 days 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).

Intentional misuse with similar medicines

Intentional misuse after Amoxicillin + Clavulanate (Clavamox) 38 reports · 1.6% of its reports

All reported side effects of Cefovecin in cats · Medicines most reported with intentional misuse