Didn't work as expected after Cefovecin (Convenia) in dogs

The FDA has received 584 reports of didn't work as expected in dogs after Cefovecin. That is 15% of all reports for this medicine, compared with 13% across reports for all dog medicines.

584Reports

27%Marked serious

6.0%Recovered

9.6%Died or euthanised

12 daysTypical onset

How soon it started

Same day

66 19%

1–2 days

28 8.2%

3–7 days

54 16%

1–4 weeks

85 25%

Over a month

109 32%

How the animals did

Recovered

35 6.0%

Still unwell when reported

323 55%

Died

35 6.0%

Euthanised

21 3.6%

Not known

170 29%

Problems reported at the same time

93 16%

79 14%

72 12%

55 9.4%

Skin rash or irritation

44 7.5%

Liver problems

42 7.2%

Diarrhea

36 6.2%

Itching

30 5.1%

Age of the animals

Under 1 year

1–3 years

4–7 years

141

8–11 years

148

12+ years

106

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 didn't work as expected in dogs?: 584 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 12 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).

Didn't work as expected with similar medicines

Didn't work as expected after Amoxicillin + Clavulanate (Clavamox) 1,093 reports · 20% of its reports
Didn't work as expected after Doxycycline 428 reports · 11% of its reports
Didn't work as expected after Enrofloxacin (Baytril) 368 reports · 9.8% of its reports
Didn't work as expected after Metronidazole 407 reports · 13% of its reports
Didn't work as expected after Amoxicillin 145 reports · 11% of its reports
Didn't work as expected after Enrofloxacin + Silver Sulfadiazine 32 reports · 15% of its reports
Didn't work as expected after Enrofloxacin + Ketoconazole + Triamcinolone 20 reports · 21% of its reports

All reported side effects of Cefovecin in dogs · Medicines most reported with didn't work as expected