Neomycin side effects in dogs

440 reports sent to the FDA between 1997 and 2026 involve Neomycin in dogs. The most reported problems were vomiting, lethargy, loss of appetite. 43% were marked serious, and where it was recorded, signs eased after stopping the medicine in 50% of cases.

440Reports
43%Marked serious
18%Only medicine involved
23%Recovered
11%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.

Didn't stop fleas
2 0.5%
Didn't stop worms
2 0.5%
Didn't prevent heartworm
2 0.5%
Didn't stop mites
1 0.2%

How soon problems started

Same day
84 25%
1–2 days
55 16%
3–7 days
54 16%
1–4 weeks
63 19%
Over a month
81 24%

Time from the first dose to the first sign, where both dates were reported (337 reports).

How the animals did

Recovered
95 22%
Recovered with lasting effects
5 1.1%
Still unwell when reported
165 38%
Died
23 5.2%
Euthanised
25 5.7%
Not known
127 29%

Breeds named most often

Popular breeds appear more often because there are more of them.

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