Leucocytosis after Fish Oil in dogs

30 reports to the FDA describe leucocytosis in dogs given Fish Oil. That is 2.0% of all reports for this medicine, compared with 1.0% across reports for all dog medicines, so it is reported unusually often with this medicine.

30Reports
90%Marked serious
6.7%Recovered
33%Died or euthanised
31 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
3 15%
1–2 days
1 5.0%
3–7 days
3 15%
1–4 weeks
3 15%
Over a month
10 50%

How the animals did

Recovered
2 6.7%
Still unwell when reported
13 43%
Died
3 10%
Euthanised
7 23%
Not known
5 17%

Problems reported at the same time

Age of the animals

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

About this medicine

Type: medicine.

Questions owners ask

Can Fish Oil cause leucocytosis in dogs?
30 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 31 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).

Leucocytosis with similar medicines

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