Tremors after Cefovecin (Convenia) in dogs

The FDA has received 184 reports of tremors in dogs after Cefovecin. That is 4.9% of all reports for this medicine, compared with 3.4% across reports for all dog medicines.

184Reports
44%Marked serious
17%Recovered
25%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
67 47%
1–2 days
26 18%
3–7 days
18 13%
1–4 weeks
20 14%
Over a month
13 9.0%

How the animals did

Recovered
31 17%
Recovered with lasting effects
1 0.5%
Still unwell when reported
68 37%
Died
25 14%
Euthanised
21 11%
Not known
38 21%

Problems reported at the same time

Age of the animals

Under 1 year
15
1–3 years
29
4–7 years
35
8–11 years
54
12+ years
48

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 tremors in dogs?
184 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 1 day 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).

Tremors with similar medicines

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