Allergic reaction after Omeprazole in dogs

33 reports to the FDA describe allergic reaction in dogs given Omeprazole. That is 3.5% of all reports for this medicine, compared with 2.3% across reports for all dog medicines.

33Reports
70%Marked serious
39%Recovered
6.1%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
15 48%
1–2 days
4 13%
3–7 days
4 13%
1–4 weeks
1 3.2%
Over a month
7 23%

How the animals did

Recovered
13 39%
Still unwell when reported
13 39%
Euthanised
2 6.1%
Not known
5 15%

Problems reported at the same time

Age of the animals

Under 1 year
2
1–3 years
15
4–7 years
4
8–11 years
6
12+ years
4

About this medicine

Type: medicine.

Questions owners ask

Can Omeprazole cause allergic reaction 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 1 day 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).

Allergic reaction with similar medicines

All reported side effects of Omeprazole in dogs · Medicines most reported with allergic reaction