Heart murmur after Cefovecin (Convenia) in dogs

21 reports to the FDA describe heart murmur in dogs given Cefovecin. That is 0.6% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

21Reports

81%Marked serious

4.8%Recovered

48%Died or euthanised

11 daysTypical onset

How soon it started

Same day

6 32%

1–2 days

1 5.3%

3–7 days

2 11%

1–4 weeks

2 11%

Over a month

8 42%

How the animals did

Recovered

1 4.8%

Still unwell when reported

10 48%

Died

5 24%

Euthanised

5 24%

Problems reported at the same time

11 52%

10 48%

8 38%

6 29%

5 24%

5 24%

4 19%

3 14%

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 heart murmur in dogs?: 21 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 11 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).

Heart murmur with similar medicines

Heart murmur after Amoxicillin + Clavulanate (Clavamox) 48 reports · 0.9% of its reports
Heart murmur after Doxycycline 35 reports · 0.9% of its reports
Heart murmur after Enrofloxacin (Baytril) 31 reports · 0.8% of its reports
Heart murmur after Metronidazole 40 reports · 1.3% of its reports

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