Didn't work as expected after Enrofloxacin (Baytril) in dogs

368 reports to the FDA describe didn't work as expected in dogs given Enrofloxacin. That is 9.8% of all reports for this medicine, compared with 13% across reports for all dog medicines.

368Reports

59%Marked serious

8.2%Recovered

22%Died or euthanised

21 daysTypical onset

How soon it started

Same day

33 13%

1–2 days

31 12%

3–7 days

21 8.4%

1–4 weeks

65 26%

Over a month

101 40%

How the animals did

Recovered

27 7.3%

Recovered with lasting effects

3 0.8%

Still unwell when reported

132 36%

Died

38 10%

Euthanised

42 11%

Not known

126 34%

Problems reported at the same time

96 26%

85 23%

81 22%

77 21%

76 21%

50 14%

44 12%

39 11%

Age of the animals

Under 1 year

1–3 years

4–7 years

100

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 didn't work as expected in dogs?: 368 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).

Didn't work as expected with similar medicines

Didn't work as expected after Amoxicillin + Clavulanate (Clavamox) 1,093 reports · 20% of its reports
Didn't work as expected after Doxycycline 428 reports · 11% of its reports
Didn't work as expected after Cefovecin (Convenia) 584 reports · 15% of its reports
Didn't work as expected after Metronidazole 407 reports · 13% of its reports
Didn't work as expected after Amoxicillin 145 reports · 11% of its reports
Didn't work as expected after Enrofloxacin + Silver Sulfadiazine 32 reports · 15% of its reports
Didn't work as expected after Enrofloxacin + Ketoconazole + Triamcinolone 20 reports · 21% of its reports

All reported side effects of Enrofloxacin in dogs · Medicines most reported with didn't work as expected