Lameness after Fish Oil in dogs

The FDA has received 42 reports of lameness in dogs after Fish Oil. That is 2.8% of all reports for this medicine, compared with 0.6% across reports for all dog medicines, so it is reported unusually often with this medicine.

42Reports
52%Marked serious
31%Recovered
12%Died or euthanised
39 daysTypical onset
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How soon it started

Same day
0 0.0%
1–2 days
5 21%
3–7 days
0 0.0%
1–4 weeks
6 25%
Over a month
13 54%

How the animals did

Recovered
12 29%
Recovered with lasting effects
1 2.4%
Still unwell when reported
18 43%
Euthanised
5 12%
Not known
6 14%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
9
4–7 years
9
8–11 years
14
12+ years
10

About this medicine

Type: medicine.

Questions owners ask

Can Fish Oil cause lameness in dogs?
42 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 39 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).

Lameness with similar medicines

All reported side effects of Fish Oil in dogs · Medicines most reported with lameness