Weight loss after Cefovecin (Convenia) in dogs

The FDA has received 167 reports of weight loss in dogs after Cefovecin. That is 4.4% of all reports for this medicine, compared with 1.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

167Reports
60%Marked serious
4.8%Recovered
34%Died or euthanised
4 daysTypical onset
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How soon it started

Same day
25 20%
1–2 days
28 22%
3–7 days
24 19%
1–4 weeks
23 18%
Over a month
28 22%

How the animals did

Recovered
8 4.8%
Still unwell when reported
69 41%
Died
30 18%
Euthanised
27 16%
Not known
33 20%

Problems reported at the same time

Age of the animals

Under 1 year
12
1–3 years
15
4–7 years
44
8–11 years
43
12+ years
50

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 weight loss in dogs?
167 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).

Weight loss with similar medicines

All reported side effects of Cefovecin in dogs · Medicines most reported with weight loss