Decreased urine concentration after Enrofloxacin (Baytril) in dogs

46 reports to the FDA describe decreased urine concentration in dogs given Enrofloxacin. That is 1.2% 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.

46Reports

63%Marked serious

6.5%Recovered

24%Died or euthanised

31 daysTypical onset

How soon it started

Same day

2 5.9%

1–2 days

1 2.9%

3–7 days

3 8.8%

1–4 weeks

11 32%

Over a month

17 50%

How the animals did

Recovered

3 6.5%

Still unwell when reported

20 43%

Died

7 15%

Euthanised

4 8.7%

Not known

12 26%

Problems reported at the same time

23 50%

23 50%

18 39%

17 37%

15 33%

14 30%

14 30%

13 28%

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 decreased urine concentration in dogs?: 46 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 31 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).

Decreased urine concentration with similar medicines

Decreased urine concentration after Amoxicillin + Clavulanate (Clavamox) 70 reports · 1.3% of its reports
Decreased urine concentration after Doxycycline 35 reports · 0.9% of its reports
Decreased urine concentration after Cefovecin (Convenia) 32 reports · 0.8% of its reports
Decreased urine concentration after Metronidazole 33 reports · 1.1% of its reports
Decreased urine concentration after Amoxicillin 23 reports · 1.7% of its reports

All reported side effects of Enrofloxacin in dogs · Medicines most reported with decreased urine concentration