Kidney problems after Cefovecin (Convenia) in cats

The FDA has received 761 reports of kidney problems in cats after Cefovecin. That is 8.8% of all reports for this medicine, compared with 4.5% across reports for all cat medicines, so it is reported unusually often with this medicine.

761Reports
58%Marked serious
4.1%Recovered
47%Died or euthanised
3 daysTypical onset
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How soon it started

Same day
126 23%
1–2 days
119 22%
3–7 days
121 22%
1–4 weeks
118 21%
Over a month
66 12%

How the animals did

Recovered
30 3.9%
Recovered with lasting effects
1 0.1%
Still unwell when reported
240 32%
Died
184 24%
Euthanised
174 23%
Not known
132 17%

Problems reported at the same time

Age of the animals

Under 1 year
34
1–3 years
65
4–7 years
139
8–11 years
216
12+ years
291

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 kidney problems in cats?
761 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 3 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).

Kidney problems with similar medicines

All reported side effects of Cefovecin in cats · Medicines most reported with kidney problems