Fish Oil side effects in dogs

1,510 reports sent to the FDA between 2007 and 2026 involve Fish Oil in dogs. The most reported problems were vomiting, lethargy, loss of appetite. 38% were marked serious, and where it was recorded, signs eased after stopping the medicine in 100% of cases.

1,510Reports
38%Marked serious
0.5%Only medicine involved
37%Recovered
8.1%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 prevent heartworm
17 1.1%

How soon problems started

Same day
137 14%
1–2 days
64 6.6%
3–7 days
59 6.1%
1–4 weeks
137 14%
Over a month
572 59%

Time from the first dose to the first sign, where both dates were reported (969 reports).

How the animals did

Recovered
501 33%
Recovered with lasting effects
65 4.3%
Still unwell when reported
439 29%
Died
45 3.0%
Euthanised
77 5.1%
Not known
383 25%

Breeds named most often

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

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