Proteinuria after Enrofloxacin (Baytril) in dogs

The FDA has received 68 reports of proteinuria in dogs after Enrofloxacin. That is 1.8% of all reports for this medicine, compared with 0.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

68Reports
69%Marked serious
12%Recovered
37%Died or euthanised
21 daysTypical onset
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How soon it started

Same day
5 11%
1–2 days
5 11%
3–7 days
6 13%
1–4 weeks
11 23%
Over a month
20 43%

How the animals did

Recovered
7 10%
Recovered with lasting effects
1 1.5%
Still unwell when reported
22 32%
Died
9 13%
Euthanised
16 24%
Not known
13 19%

Problems reported at the same time

Age of the animals

Under 1 year
2
1–3 years
6
4–7 years
22
8–11 years
20
12+ years
18

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 proteinuria in dogs?
68 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 21 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).

Proteinuria with similar medicines

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