Skin rash or irritation after Cefovecin (Convenia) in cats

The FDA has received 375 reports of skin rash or irritation in cats after Cefovecin. That is 4.3% of all reports for this medicine, compared with 2.0% across reports for all cat medicines, so it is reported unusually often with this medicine.

375Reports
46%Marked serious
7.5%Recovered
8.8%Died or euthanised
10 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
27 10%
1–2 days
28 11%
3–7 days
53 20%
1–4 weeks
91 35%
Over a month
61 23%

How the animals did

Recovered
28 7.5%
Still unwell when reported
204 54%
Died
20 5.3%
Euthanised
13 3.5%
Not known
110 29%

Problems reported at the same time

Itching
134 36%
Hair loss
127 34%
Didn't work as expected
99 26%
Loss of appetite
76 20%
Skin scab
74 20%
Lethargy
50 13%
Crust
46 12%
Skin redness
45 12%

Age of the animals

Under 1 year
28
1–3 years
53
4–7 years
69
8–11 years
85
12+ years
132

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 skin rash or irritation in cats?
375 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 10 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).

Skin rash or irritation with similar medicines

All reported side effects of Cefovecin in cats · Medicines most reported with skin rash or irritation