Loss of appetite after Neomycin + Polymyxin B in dogs

36 reports to the FDA describe loss of appetite in dogs given Neomycin + Polymyxin B. That is 18% 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.

36Reports
83%Marked serious
8.3%Recovered
14%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
14 42%
1–2 days
4 12%
3–7 days
3 9.1%
1–4 weeks
3 9.1%
Over a month
9 27%

How the animals did

Recovered
3 8.3%
Still unwell when reported
15 42%
Died
3 8.3%
Euthanised
2 5.6%
Not known
13 36%

Problems reported at the same time

19 53%
16 44%
13 36%
Schirmer tear test
10 28%
Weight loss
9 25%

Age of the animals

Under 1 year
0
1–3 years
4
4–7 years
6
8–11 years
16
12+ years
8

About this medicine

Type: medicine.

Questions owners ask

Can Neomycin + Polymyxin B cause loss of appetite in dogs?
36 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).

Loss of appetite with similar medicines

All reported side effects of Neomycin + Polymyxin B in dogs · Medicines most reported with loss of appetite