Excessive thirst after Fish Oil in dogs

58 reports to the FDA describe excessive thirst in dogs given Fish Oil. That is 3.8% of all reports for this medicine, compared with 1.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

58Reports
50%Marked serious
14%Recovered
10%Died or euthanised
20 daysTypical onset
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How soon it started

Same day
2 5.9%
1–2 days
2 5.9%
3–7 days
4 12%
1–4 weeks
14 41%
Over a month
12 35%

How the animals did

Recovered
4 6.9%
Recovered with lasting effects
4 6.9%
Still unwell when reported
30 52%
Died
3 5.2%
Euthanised
3 5.2%
Not known
14 24%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
5
4–7 years
8
8–11 years
26
12+ years
19

About this medicine

Type: medicine.

Questions owners ask

Can Fish Oil cause excessive thirst in dogs?
58 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 20 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).

Excessive thirst with similar medicines

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