Disorientation after Cefovecin (Convenia) in cats

The FDA has received 175 reports of disorientation in cats after Cefovecin. That is 2.0% of all reports for this medicine, compared with 1.0% across reports for all cat medicines, so it is reported unusually often with this medicine.

175Reports

58%Marked serious

11%Recovered

33%Died or euthanised

1 daysTypical onset

How soon it started

Same day

69 47%

1–2 days

34 23%

3–7 days

19 13%

1–4 weeks

15 10%

Over a month

11 7.4%

How the animals did

Recovered

18 10%

Recovered with lasting effects

1 0.6%

Still unwell when reported

61 35%

Died

34 19%

Euthanised

24 14%

Not known

37 21%

Problems reported at the same time

68 39%

63 36%

56 32%

46 26%

42 24%

33 19%

28 16%

Eye or vision problems

27 15%

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 disorientation in cats?: 175 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).

Disorientation with similar medicines

Disorientation after Amoxicillin + Clavulanate (Clavamox) 35 reports · 1.5% of its reports
Disorientation after Enrofloxacin (Baytril) 50 reports · 3.2% of its reports

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