Itching after Cefovecin (Convenia) in cats

563 reports to the FDA describe itching in cats given Cefovecin. That is 6.5% of all reports for this medicine, compared with 8.9% across reports for all cat medicines.

563Reports
51%Marked serious
11%Recovered
8.9%Died or euthanised
4 daysTypical onset
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How soon it started

Same day
114 24%
1–2 days
90 19%
3–7 days
80 17%
1–4 weeks
109 23%
Over a month
76 16%

How the animals did

Recovered
62 11%
Recovered with lasting effects
1 0.2%
Still unwell when reported
317 56%
Died
27 4.8%
Euthanised
23 4.1%
Not known
133 24%

Problems reported at the same time

Age of the animals

Under 1 year
62
1–3 years
99
4–7 years
109
8–11 years
107
12+ years
170

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 cats?
563 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).

Itching with similar medicines

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