Seizures after Enrofloxacin (Baytril) in cats

The FDA has received 145 reports of seizures in cats after Enrofloxacin. That is 9.2% of all reports for this medicine, compared with 2.6% across reports for all cat medicines, so it is reported unusually often with this medicine.

145Reports
40%Marked serious
12%Recovered
28%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
17 31%
1–2 days
16 29%
3–7 days
8 15%
1–4 weeks
9 16%
Over a month
5 9.1%

How the animals did

Recovered
17 12%
Recovered with lasting effects
1 0.7%
Still unwell when reported
9 6.2%
Died
27 19%
Euthanised
13 9.0%
Not known
78 54%

Problems reported at the same time

Age of the animals

Under 1 year
16
1–3 years
39
4–7 years
30
8–11 years
25
12+ years
30

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 seizures in cats?
145 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 1 day 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).

Seizures with similar medicines

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