Drug profile

The FDA adverse-event record for Omeprazole 37% Oral Paste

415 FDA reports name Omeprazole 37% Oral Paste, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#347 of 2,679
by report volume (all drugs)
415
adverse-event reports
2.9%
death-coded share
Horse
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Omeprazole 37% Oral Paste ranks #347 of 2679 by total reports (415) and #928 of 1130 by death-coded share (2.9%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#347
This drug, reports of 2679
#928
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Omeprazole 37% Oral Paste has 415 reports now versus 413 in that prior snapshot: 2 more (0.5%).

Report change
+2
Death-coded reports
+2
Death-coded share
+0.5 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Omeprazole 37% Oral Paste changes

Signature read: 415 reports place Omeprazole 37% Oral Paste in the upper third of FDA AER volume (#347 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
415
Total Reports
12
Deaths Reported
2.9%
Death-coded share of reports

Active Ingredients

Omeprazole 37% Oral Paste

Administration Routes

OralUnknownOtherTopical

Species Affected

Horse 229
Unknown 179
Human 4
Dog 1
Cat 1
Pig 1

Most Affected Breeds

Unknown 184
Horse (unknown) 58
Thoroughbred 42
Quarter Horse 34
Warmblood - Dutch 15
Hanovarian 12
Paint 7
Standardbred (unspecified) 6
Warmblood (unspecified) 6
Arab 6

Most Reported Reactions

INEFFECTIVE, GASTRIC ULCER(S) 171
Uncoded sign 96
Gastric ulcer 90
Locking Mechanism Abnormal 80
Overdose 48
Gastric ulceration NOS 47
Lack of efficacy - NOS 30
Colic 29
Behavioural disorder NOS 19
Containers, Damaged 18
Other abnormal test result NOS 18
Digestive tract disorder NOS 12

Outcome Breakdown

Outcome Unknown
152 (64.1%)
Recovered/Normal
40 (16.9%)
Ongoing
31 (13.1%)
Euthanized
11 (4.6%)
Recovered with Sequela
2 (0.8%)
Died
1 (0.4%)

Omeprazole 37% Oral Paste: low death-coded share in the FDA AER row

Read these counts as reporting volume, not risk: per our methodology, a widely-prescribed drug will rack up more raw FDA reports in a given year than a rarely-used one at an identical true rate, so we recommend comparing within similar-exposure products rather than across the full 2025 catalog.

High-volume nationwide drug peers

Two openFDA-derived peer sets for Omeprazole 37% Oral Paste, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

What to do with this drug

  • Compare Omeprazole 37% Oral Paste's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Omeprazole 37% Oral Paste (#347 of 2,679 by report volume); death-coded 2.9%. PlainBreed drug row · report volume stamp 415 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →