Fever after Enrofloxacin (Baytril) in cats

64 reports to the FDA describe fever in cats given Enrofloxacin. That is 4.1% of all reports for this medicine, compared with 3.2% across reports for all cat medicines.

64Reports

58%Marked serious

17%Recovered

23%Died or euthanised

6 daysTypical onset

How soon it started

Same day

8 20%

1–2 days

7 18%

3–7 days

8 20%

1–4 weeks

12 30%

Over a month

5 13%

How the animals did

Recovered

11 17%

Still unwell when reported

12 19%

Died

6 9.4%

Euthanised

9 14%

Not known

26 41%

Problems reported at the same time

30 47%

30 47%

15 23%

15 23%

15 23%

12 19%

10 16%

Eye or vision problems

9 14%

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 fever in cats?: 64 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).

Fever with similar medicines

Fever after Cefovecin (Convenia) 715 reports · 8.2% of its reports
Fever after Amoxicillin + Clavulanate (Clavamox) 129 reports · 5.4% of its reports
Fever after Amoxicillin 30 reports · 5.8% of its reports
Fever after Doxycycline 35 reports · 14% of its reports

All reported side effects of Enrofloxacin in cats · Medicines most reported with fever