Omeprazole side effects in dogs

953 reports sent to the FDA between 2006 and 2026 involve Omeprazole in dogs. The most reported problems were loss of appetite, vomiting, lethargy. 59% were marked serious, and where it was recorded, signs eased after stopping the medicine in 100% of cases.

953Reports
59%Marked serious
0.7%Only medicine involved
20%Recovered
20%Died or euthanised
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About this medicine

Type: medicine.

Most reported side effects

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.

Didn't stop worms
8 0.8%
Didn't prevent heartworm
5 0.5%
Didn't stop fleas
4 0.4%
Didn't stop ticks
1 0.1%

How soon problems started

Same day
140 19%
1–2 days
103 14%
3–7 days
83 11%
1–4 weeks
161 21%
Over a month
269 36%

Time from the first dose to the first sign, where both dates were reported (756 reports).

How the animals did

Recovered
180 19%
Recovered with lasting effects
9 0.9%
Still unwell when reported
378 40%
Died
64 6.7%
Euthanised
129 14%
Not known
193 20%

Breeds named most often

Popular breeds appear more often because there are more of them.

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