Abdominal effusion after Enrofloxacin (Baytril) in dogs

The FDA has received 26 reports of abdominal effusion in dogs after Enrofloxacin. That is 0.7% of all reports for this medicine, compared with 0.0% across reports for all dog medicines, so it is reported unusually often with this medicine.

26Reports

96%Marked serious

7.7%Recovered

65%Died or euthanised

6 daysTypical onset

How soon it started

Same day

3 13%

1–2 days

5 22%

3–7 days

4 17%

1–4 weeks

4 17%

Over a month

7 30%

How the animals did

Recovered

2 7.7%

Still unwell when reported

6 23%

Died

3 12%

Euthanised

14 54%

Not known

1 3.8%

Problems reported at the same time

20 77%

20 77%

19 73%

17 65%

17 65%

Abnormal ultrasound finding

16 62%

Kidney problems

16 62%

Diarrhea

12 46%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Enrofloxacin treats bacterial infections.

Products with this ingredient include Baytril. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Enrofloxacin cause abdominal effusion in dogs?: 26 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).

Abdominal effusion with similar medicines

Abdominal effusion after Amoxicillin + Clavulanate (Clavamox) 21 reports · 0.4% of its reports
Abdominal effusion after Metronidazole 27 reports · 0.9% of its reports

All reported side effects of Enrofloxacin in dogs · Medicines most reported with abdominal effusion