Dysphoria after Cefovecin (Convenia) in cats

61 reports to the FDA describe dysphoria in cats given Cefovecin. That is 0.7% of all reports for this medicine, compared with 0.4% across reports for all cat medicines, so it is reported unusually often with this medicine.

61Reports

25%Marked serious

28%Recovered

6.6%Died or euthanised

Same dayTypical onset

How soon it started

Same day

31 55%

1–2 days

14 25%

3–7 days

6 11%

1–4 weeks

3 5.4%

Over a month

2 3.6%

How the animals did

Recovered

17 28%

Still unwell when reported

29 48%

Died

2 3.3%

Euthanised

2 3.3%

Not known

11 18%

Problems reported at the same time

Loss of appetite

19 31%

Behaviour change

18 30%

Dilated pupils

16 26%

Restlessness or agitation

13 21%

Not sleeping

13 21%

Eye or vision problems

12 20%

Fever

11 18%

Hiding

9 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 dysphoria in cats?: 61 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 the same 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 dysphoria