Loss of appetite after Cefovecin (Convenia) in cats

2,549 reports to the FDA describe loss of appetite in cats given Cefovecin. That is 29% of all reports for this medicine, compared with 14% across reports for all cat medicines, so it is reported unusually often with this medicine.

2,549Reports
47%Marked serious
11%Recovered
26%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
575 28%
1–2 days
555 27%
3–7 days
373 18%
1–4 weeks
387 19%
Over a month
146 7.2%

How the animals did

Recovered
262 10%
Recovered with lasting effects
8 0.3%
Still unwell when reported
953 37%
Died
352 14%
Euthanised
316 12%
Not known
658 26%

Problems reported at the same time

1,310 51%
661 26%
658 26%
368 14%

Age of the animals

Under 1 year
141
1–3 years
342
4–7 years
514
8–11 years
637
12+ years
834

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 loss of appetite in cats?
2,549 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 2 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).

Loss of appetite with similar medicines

All reported side effects of Cefovecin in cats · Medicines most reported with loss of appetite