Loss of appetite after Enrofloxacin (Baytril) in dogs

The FDA has received 854 reports of loss of appetite in dogs after Enrofloxacin. That is 23% of all reports for this medicine, compared with 8.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

854Reports
74%Marked serious
17%Recovered
34%Died or euthanised
6 daysTypical onset
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How soon it started

Same day
109 17%
1–2 days
136 21%
3–7 days
107 16%
1–4 weeks
150 23%
Over a month
158 24%

How the animals did

Recovered
133 16%
Recovered with lasting effects
8 0.9%
Still unwell when reported
201 24%
Died
122 14%
Euthanised
172 20%
Not known
218 26%

Problems reported at the same time

437 51%
414 48%
291 34%
176 21%
165 19%

Age of the animals

Under 1 year
55
1–3 years
119
4–7 years
230
8–11 years
270
12+ years
168

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 loss of appetite in dogs?
854 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).

Loss of appetite with similar medicines

All reported side effects of Enrofloxacin in dogs · Medicines most reported with loss of appetite