Blood problems after Cefovecin (Convenia) in dogs

322 reports to the FDA describe blood problems in dogs given Cefovecin. That is 8.5% of all reports for this medicine, compared with 1.8% across reports for all dog medicines, so it is reported unusually often with this medicine.

322Reports
62%Marked serious
6.8%Recovered
38%Died or euthanised
6 daysTypical onset
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How soon it started

Same day
37 16%
1–2 days
37 16%
3–7 days
58 25%
1–4 weeks
55 23%
Over a month
48 20%

How the animals did

Recovered
22 6.8%
Still unwell when reported
124 39%
Died
59 18%
Euthanised
64 20%
Not known
53 16%

Problems reported at the same time

Age of the animals

Under 1 year
28
1–3 years
27
4–7 years
89
8–11 years
104
12+ years
69

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 blood problems in dogs?
322 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 6 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).

Blood problems with similar medicines

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