Allergic reaction after Cefovecin (Convenia) in dogs

314 reports to the FDA describe allergic reaction in dogs given Cefovecin. That is 8.3% of all reports for this medicine, compared with 2.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

314Reports
46%Marked serious
28%Recovered
17%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
165 73%
1–2 days
23 10%
3–7 days
10 4.4%
1–4 weeks
17 7.5%
Over a month
11 4.9%

How the animals did

Recovered
87 28%
Still unwell when reported
99 32%
Died
37 12%
Euthanised
16 5.1%
Not known
75 24%

Problems reported at the same time

Age of the animals

Under 1 year
25
1–3 years
70
4–7 years
104
8–11 years
71
12+ years
34

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 allergic reaction in dogs?
314 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).

Allergic reaction with similar medicines

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