Blood in stool after Omeprazole in dogs

33 reports to the FDA describe blood in stool in dogs given Omeprazole. That is 3.5% 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.

33Reports
82%Marked serious
21%Recovered
27%Died or euthanised
32 daysTypical onset
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How soon it started

Same day
1 4.0%
1–2 days
3 12%
3–7 days
2 8.0%
1–4 weeks
6 24%
Over a month
13 52%

How the animals did

Recovered
7 21%
Still unwell when reported
15 45%
Died
4 12%
Euthanised
5 15%
Not known
2 6.1%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
5
4–7 years
9
8–11 years
11
12+ years
8

About this medicine

Type: medicine.

Questions owners ask

Can Omeprazole cause blood in stool in dogs?
33 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 32 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).

Blood in stool with similar medicines

All reported side effects of Omeprazole in dogs · Medicines most reported with blood in stool