Abnormal radiograph finding after Cefovecin (Convenia) in cats

The FDA has received 337 reports of abnormal radiograph finding in cats after Cefovecin. That is 3.9% 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.

337Reports
57%Marked serious
3.6%Recovered
47%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
62 27%
1–2 days
53 23%
3–7 days
42 19%
1–4 weeks
48 21%
Over a month
22 9.7%

How the animals did

Recovered
12 3.6%
Still unwell when reported
100 30%
Died
86 26%
Euthanised
74 22%
Not known
65 19%

Problems reported at the same time

Age of the animals

Under 1 year
19
1–3 years
53
4–7 years
76
8–11 years
98
12+ years
87

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 abnormal radiograph finding in cats?
337 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 2 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).

Abnormal radiograph finding with similar medicines

All reported side effects of Cefovecin in cats · Medicines most reported with abnormal radiograph finding