Not drinking after Cefovecin (Convenia) in cats

The FDA has received 250 reports of not drinking in cats after Cefovecin. That is 2.9% of all reports for this medicine, compared with 1.1% across reports for all cat medicines, so it is reported unusually often with this medicine.

250Reports

59%Marked serious

16%Recovered

30%Died or euthanised

1 daysTypical onset

How soon it started

Same day

103 44%

1–2 days

64 27%

3–7 days

35 15%

1–4 weeks

21 9.0%

Over a month

10 4.3%

How the animals did

Recovered

38 15%

Recovered with lasting effects

1 0.4%

Still unwell when reported

86 34%

Died

31 12%

Euthanised

45 18%

Not known

49 20%

Problems reported at the same time

231 92%

113 45%

75 30%

45 18%

43 17%

40 16%

38 15%

37 15%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

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 not drinking in cats?: 250 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).

Not drinking with similar medicines

Not drinking after Amoxicillin + Clavulanate (Clavamox) 36 reports · 1.5% of its reports

All reported side effects of Cefovecin in cats · Medicines most reported with not drinking