Corneal ulcer after Enrofloxacin (Baytril) in dogs

The FDA has received 49 reports of corneal ulcer in dogs after Enrofloxacin. That is 1.3% of all reports for this medicine, compared with 0.1% across reports for all dog medicines, so it is reported unusually often with this medicine.

49Reports
96%Marked serious
18%Recovered
27%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
14 36%
1–2 days
6 15%
3–7 days
3 7.7%
1–4 weeks
6 15%
Over a month
10 26%

How the animals did

Recovered
9 18%
Still unwell when reported
9 18%
Died
2 4.1%
Euthanised
11 22%
Not known
18 37%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
8
4–7 years
13
8–11 years
15
12+ years
11

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 corneal ulcer in dogs?
49 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 2 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).

Corneal ulcer with similar medicines

All reported side effects of Enrofloxacin in dogs · Medicines most reported with corneal ulcer