Vocalising after Enrofloxacin (Baytril) in cats

The FDA has received 69 reports of vocalising in cats after Enrofloxacin. That is 4.4% of all reports for this medicine, compared with 3.1% across reports for all cat medicines.

69Reports

59%Marked serious

20%Recovered

33%Died or euthanised

2 daysTypical onset

How soon it started

Same day

13 33%

1–2 days

10 25%

3–7 days

7 18%

1–4 weeks

3 7.5%

Over a month

7 18%

How the animals did

Recovered

10 14%

Recovered with lasting effects

4 5.8%

Still unwell when reported

5 7.2%

Died

14 20%

Euthanised

9 13%

Not known

27 39%

Problems reported at the same time

Behaviour change

32 46%

Eye or vision problems

26 38%

24 35%

13 19%

13 19%

12 17%

11 16%

11 16%

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 vocalising in cats?: 69 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).

Vocalising with similar medicines

Vocalising after Cefovecin (Convenia) 378 reports · 4.4% of its reports
Vocalising after Amoxicillin + Clavulanate (Clavamox) 79 reports · 3.3% of its reports

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