Swelling after Cefovecin (Convenia) in dogs

The FDA has received 362 reports of swelling in dogs after Cefovecin. That is 9.6% of all reports for this medicine, compared with 2.8% across reports for all dog medicines, so it is reported unusually often with this medicine.

362Reports
38%Marked serious
22%Recovered
19%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
125 46%
1–2 days
55 20%
3–7 days
39 14%
1–4 weeks
31 11%
Over a month
21 7.7%

How the animals did

Recovered
78 22%
Still unwell when reported
141 39%
Died
37 10%
Euthanised
30 8.3%
Not known
76 21%

Problems reported at the same time

Age of the animals

Under 1 year
39
1–3 years
72
4–7 years
103
8–11 years
86
12+ years
56

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 swelling in dogs?
362 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).

Swelling with similar medicines

All reported side effects of Cefovecin in dogs · Medicines most reported with swelling