Respiratory distress after Cefovecin (Convenia) in cats

96 reports to the FDA describe respiratory distress in cats given Cefovecin. That is 1.1% 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.

96Reports

86%Marked serious

7.3%Recovered

74%Died or euthanised

1 daysTypical onset

How soon it started

Same day

43 49%

1–2 days

21 24%

3–7 days

11 13%

1–4 weeks

5 5.7%

Over a month

7 8.0%

How the animals did

Recovered

7 7.3%

Still unwell when reported

13 14%

Died

43 45%

Euthanised

28 29%

Not known

5 5.2%

Problems reported at the same time

70 73%

36 38%

26 27%

25 26%

23 24%

23 24%

Abnormal radiograph finding

20 21%

Vomiting

14 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 respiratory distress in cats?: 96 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 respiratory distress