Hind limb paresis after Enrofloxacin (Baytril) in dogs

The FDA has received 41 reports of hind limb paresis in dogs after Enrofloxacin. That is 1.1% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

41Reports
46%Marked serious
7.3%Recovered
20%Died or euthanised
14 daysTypical onset
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How soon it started

Same day
3 17%
1–2 days
2 11%
3–7 days
3 17%
1–4 weeks
6 33%
Over a month
4 22%

How the animals did

Recovered
3 7.3%
Still unwell when reported
9 22%
Died
4 9.8%
Euthanised
4 9.8%
Not known
21 51%

Problems reported at the same time

Loss of appetite
11 27%
Wobbliness (ataxia)
10 24%
Death
8 20%
Lethargy
8 20%
Weakness
8 20%
Tremors
6 15%
Proprioception deficit
6 15%
Lameness
4 9.8%

Age of the animals

Under 1 year
9
1–3 years
6
4–7 years
5
8–11 years
8
12+ years
12

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 hind limb paresis in dogs?
41 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 14 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).

Hind limb paresis with similar medicines

All reported side effects of Enrofloxacin in dogs · Medicines most reported with hind limb paresis