Reddening of the skin after Cefovecin (Convenia) in dogs

The FDA has received 41 reports of reddening of the skin in dogs after Cefovecin. That is 1.1% of all reports for this medicine, compared with 0.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

41Reports
61%Marked serious
9.8%Recovered
9.8%Died or euthanised
4 daysTypical onset
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How soon it started

Same day
10 28%
1–2 days
8 22%
3–7 days
1 2.8%
1–4 weeks
8 22%
Over a month
9 25%

How the animals did

Recovered
3 7.3%
Recovered with lasting effects
1 2.4%
Still unwell when reported
31 76%
Euthanised
4 9.8%
Not known
2 4.9%

Problems reported at the same time

Didn't work as expected
10 24%
Vomiting
9 22%
Loss of appetite
8 20%
Swelling
8 20%
Skin rash or irritation
8 20%
Itching
7 17%
Lethargy
7 17%
Allergic reaction
6 15%

Age of the animals

Under 1 year
1
1–3 years
8
4–7 years
11
8–11 years
12
12+ years
8

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 reddening of the skin in dogs?
41 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 4 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).

Reddening of the skin with similar medicines

All reported side effects of Cefovecin in dogs · Medicines most reported with reddening of the skin