Itching after Cefovecin (Convenia) in dogs

The FDA has received 224 reports of itching in dogs after Cefovecin. That is 5.9% of all reports for this medicine, compared with 4.3% across reports for all dog medicines.

224Reports
34%Marked serious
17%Recovered
8.5%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
57 37%
1–2 days
26 17%
3–7 days
18 12%
1–4 weeks
27 18%
Over a month
25 16%

How the animals did

Recovered
37 17%
Recovered with lasting effects
2 0.9%
Still unwell when reported
95 42%
Died
10 4.5%
Euthanised
9 4.0%
Not known
71 32%

Problems reported at the same time

Age of the animals

Under 1 year
24
1–3 years
38
4–7 years
64
8–11 years
55
12+ years
35

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 itching in dogs?
224 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).

Itching with similar medicines

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