Meds A-Z
Omeprazole
Detailed information about Omeprazole
Pet Owner Quick Guide
Start here: what this medicine is for, what it does, and when it's usually needed.
Usually used for:
For treatment and prevention of recurrence of gastric ulcers in horses and foals 4 weeks of age and older.
What it does:
Proton pump inhibitor used to reduce stomach acid (ulcers, reflux).
When it's needed:
Use caution with liver disease; check interactions with other medications.
Call your vet sooner if you notice:
- Use caution with liver disease; check interactions with other medications.
Commonly reported reactions:
- (2 reports)
- (1 reports)
- (1 reports)
What to ask your vet today:
- Is this medicine the right fit for my pet’s current symptoms?
- Which warning signs mean I should call back right away?
- How should I handle missed doses or refusal to take the medicine?
Omeprazole
Drug type: Generic ingredient • Branded profile • FDA branded products available
Species: Both
Manufacturer: MSK
Quick Facts
Official label facts first, then secondary summaries. Marketing content is separated below.
- https://animaldrugsatfda.fda.gov/adafda/views/#/home/previewsearch/141123 · official_label · FDA application profile
- https://animaldrugsatfda.fda.gov/adafda/views/#/home/previewsearch/141227 · official_label · FDA application profile
- https://animaldrugsatfda.fda.gov · fda_animal_drugs · Medication usage source
Warnings / Contraindications
Use caution with liver disease; check interactions with other medications.
- High: Use caution with liver disease; check interactions with other medications.
- https://animaldrugsatfda.fda.gov · fda_animal_drugs · Contraindication source
Adverse Reactions
Snapshot first, detailed rows second. This section summarizes signal data and is not a diagnosis.
Tap or hover a reaction to see what it means in plain language.
Most Reported Reactions
| Reaction | Cases | Species | Serious cases |
|---|---|---|---|
| 2 | Cat, Dog | 2 | |
| 1 | Dog | 1 | |
| 1 | Cat | 1 | |
| 1 | Cat | 1 | |
| 1 | Dog | 1 | |
| 1 | Cat | 1 | |
| 1 | Dog | 1 | |
| 1 | Cat | 1 |
Species coverage: Cat (18) Dog (14)
View detailed reaction table
| Reaction | Species | Seriousness | Frequency | Reports |
|---|---|---|---|---|
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Dog | Non-serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Cat | Serious | - | 1 | |
| Dog | Serious | - | 1 |
- https://api.fda.gov/animalandveterinary/event.json · adverse_reaction · openFDA case USA-USFDACVM-2025-US-047564
Storage & Handling
Store at room temperature.
Documents
Official label facts are separated from secondary summaries.
Official documents: 4 • Secondary summaries: 0
- ucm117173.pdf · FOI
- GastroGard® · SPL
- ucm118038.pdf · FOI
- UlcerGard® · SPL
No source yet.
- https://animaldrugsatfda.fda.gov/adafda/app/search/public/document/downloadFoi/649 · document · FOI
- https://animaldrugsatfda.fda.gov/adafda/app/search/public/spl/file/1828/GastroGard%C2%AE · document · SPL
- https://animaldrugsatfda.fda.gov/adafda/app/search/public/document/downloadFoi/765 · document · FOI
- https://animaldrugsatfda.fda.gov/adafda/app/search/public/spl/file/259/UlcerGard%C2%AE · document · SPL
Promotional Materials (Marketing)
This content is marketing material and not clinical guidance.
No marketing assets are linked yet.
No source yet.
Technical appendix (vet reference)
Canonical medication sections are above. This legacy block remains available for deeper cross-reference without cluttering the primary workflow.
At a Glance
Quick facts and links to official labeling and safety signals.
- Medication catalog: Source PetWisePlus | Refreshed Feb 12, 2026, 7:40 PM UTC
-
Animal Drugs @ FDA:
Source FDA
| Refreshed Feb 16, 2026, 11:00 AM UTC
Applications/products are imported from FDA export data.
-
Animal Drugs @ FDA previews:
Source FDA
| Refreshed Feb 9, 2026, 3:05 AM UTC
Label highlights/doc links are fetched from FDA preview endpoints.
-
Animal Drug Product Listing Directory (NDC):
Source FDA
| Refreshed Feb 16, 2026, 11:00 AM UTC
Package/product NDCs from FDA’s electronic listing directory (XLS).
- openFDA reaction terms: Source FDA openFDA | Refreshed Feb 16, 2026, 11:02 AM UTC
- openFDA case summaries: Source FDA openFDA | Refreshed Feb 9, 2026, 3:19 AM UTC
Diagnosis-code mappings are not available for this medication yet.
Counseling and Monitoring Highlights
Global Pet owner/Vet mode is controlled in the header. This section avoids duplicate in-page persona tabs.
- Use caution with liver disease; check interactions with other medications. (Contraindication, High)
Identifiers & Packages
Normalized identifiers (NDC/NADA/ANADA) and package metadata from regulator listings.
| Package NDC | Product NDC | Form / Route | Status |
|---|---|---|---|
| 0010-3704-01 | 0010 | - | |
| 0010-3704-02 | 0010 | - | |
| 0010-9719-01 | 0010 | - | |
| 0010-9719-02 | 0010 | - | |
| 58597-7030-8 | 58597 | - | |
| 58597-7030-9 | 58597 | - | |
| 62157-643-01 | 62157 | - | |
| 62157-807-01 | 62157 | - | |
| 73309-128-01 | 73309 | - | |
| 86065-002-01 | 86065 | - | |
| 86213-221-01 | 86213 | - | |
| 86213-221-02 | 86213 | - | |
| 86213-222-01 | 86213 | - | |
| 86213-222-02 | 86213 | - | |
| 86213-223-01 | 86213 | - | |
| 86213-223-02 | 86213 | - |
Enriched Documents
Documents are tiered by source trust: Official, Clinical, Manufacturer, Marketing.
-
ucm118038.pdf
• FOI summary • Official
• June 1, 2016
FDA FOI summary for application 141227
-
ucm117173.pdf
• FOI summary • Official
• June 1, 2016
FDA FOI summary for application 141123
Data Sources & Revision History
Every non-trivial field is expected to include provenance and update timestamps.
- storage_handling: Store at room temperature. (Clinical, 2026-02-12)
- contraindications: Use caution with liver disease; check interactions with other medications. (Official, 2026-02-12)
- side_effects: Generally well tolerated; occasional GI upset. (Official, 2026-02-12)
- usage: Proton pump inhibitor used to reduce stomach acid (ulcers, reflux). (Official, 2026-02-12)
- side_effects updated 2026-02-12 19:40 by etl_backfill • Backfilled from existing medication fields
- contraindications updated 2026-02-12 19:40 by etl_backfill • Backfilled from existing medication fields
- usage updated 2026-02-12 19:40 by etl_backfill • Backfilled from existing medication fields
FDA Products & Applications (Animal Drugs @ FDA)
Official sponsor/proprietary-name/application-status records linked by active ingredient.
| Product | Sponsor | Application | Status | Published |
|---|---|---|---|---|
|
GastroGard®
RX
Omeprazole
Paste
• Oral
|
Boehringer lngelheim Animal Health USA, Inc. | NADA 141-123 | Approved | Jun 1, 2016 |
|
UlcerGard®
OTC
Omeprazole
Paste
• Oral
|
Boehringer lngelheim Animal Health USA, Inc. | NADA 141-227 | Approved | Jun 1, 2016 |
Data source: FDA Animal Drugs @ FDA (public search export).
What It's For (FDA Label Highlights)
Extracted from FDA Animal Drugs @ FDA product labeling. Always confirm details with your veterinarian.
Composition / specifications
FDA page: Open in Animal Drugs @ FDA
Composition / specifications
FDA page: Open in Animal Drugs @ FDA
Official Documents (FDA)
Direct links to FDA-hosted PDFs and SPL packages (when available).
-
FOI ucm117173.pdf
Summary
For the treatment and prevention of recurrence of gastric ulcers in horses and foals 4 weeks of age and older.
- GastroGard® (ZIP)
FDA page: Open in Animal Drugs @ FDA
-
FOI ucm118038.pdf
Summary
For the prevention of gastric ulcers.
- UlcerGard® (ZIP)
FDA page: Open in Animal Drugs @ FDA
Usage
Proton pump inhibitor used to reduce stomach acid (ulcers, reflux).
Source: FDA Animal Drugs @ FDA • Reference
Contraindications
Use caution with liver disease; check interactions with other medications.
Side Effects
Generally well tolerated; occasional GI upset.
Source: FDA openFDA • Reference
Top Reported Reactions (openFDA)
Aggregated reaction terms from FDA openFDA reports (not verified; does not prove causation).
Data source: FDA openFDA Animal & Veterinary adverse event reports.
Adverse Event Case Summaries (openFDA)
These are individual FDA adverse event reports. They are unverified and do not prove the medication caused the reaction.
Dog, ['Weimaraner', 'Retriever - Labrador'], Male, 14 year, 26.3 kilogram • Drug: MSK, Unknown • Reactions: Gait abnormality, Walking difficulty, Unsteady gait, Product label issues • Outcome: Ongoing
- Report ID: USA-USFDACVM-2025-US-054553
- Serious AE: No
- Treated For AE: No
- Sex: Male
- Age: 14.00 Year
- Weight: 26.300 Kilogram
- Case-reported brand: MSK
- Case-reported manufacturer: MSK
- Route: Unknown
Dog, Terrier - Bull - American Pit, Male, 14 year, 24.494 kilogram • Drug: MSK, Unassigned, Unknown • Reactions: Stiff gait, Cognitive disorder NOS, Malaise, Vomiting, Diarrhea… • Outcome: Ongoing
- Report ID: USA-USFDACVM-2025-US-055236
- Serious AE: Yes
- Treated For AE: Yes
- Sex: Male
- Age: 14.00 Year
- Weight: 24.494 Kilogram
- Case-reported brand: MSK
- Case-reported manufacturer: MSK
- Route: Unknown
- Form: Unassigned
Dog, Crossbred Canine/dog, Male, 4 year, 14.969 kilogram • Drug: MSK, Unassigned, Oral, Frequency: 1 per day • Reactions: Vomiting, Not eating, Elevated creatinine, Acute renal failure, Accidental exposure… • Outcome: Ongoing
- Report ID: USA-USFDACVM-2025-US-055034
- Serious AE: Yes
- Treated For AE: Yes
- Sex: Male
- Age: 4.00 Year
- Weight: 14.969 Kilogram
- Case-reported brand: MSK
- Case-reported manufacturer: MSK
- Route: Oral
- Form: Unassigned
- Frequency: 1 per day
Dog, Bulldog - English, Male, 7 year, 45.359 kilogram • Drug: MSK, Unassigned, Oral • Reactions: Vomiting • Outcome: Recovered/Normal
- Report ID: USA-USFDACVM-2025-US-055385
- Serious AE: No
- Treated For AE: No
- Sex: Male
- Age: 7.00 Year
- Weight: 45.359 Kilogram
- Case-reported brand: MSK
- Case-reported manufacturer: MSK
- Route: Oral
- Form: Unassigned
Dog, Terrier - Yorkshire, Male, 8 year, 3.629 kilogram • Drug: MSK, Tablet, Oral, Dose: 5 Milligram per dose, Frequency: 12 per hour • Reactions: Jaundice, Low blood urea nitrogen, Low creatinine, Hypokalaemia, Death by euthanasia • Outcome: Euthanized
- Report ID: USA-USFDACVM-2025-US-053982
- Serious AE: Yes
- Treated For AE: Yes
- Sex: Male
- Age: 8.00 Year
- Weight: 3.629 Kilogram
- Case-reported brand: MSK
- Case-reported manufacturer: MSK
- Route: Oral
- Form: Tablet
- Dose: 5 Milligram per dose
- Frequency: 12 per hour
Cat, Domestic Shorthair, Female, 15 year • Drug: MSK, Unknown • Reactions: Inappropriate defecation, Hyperthermia, Dehydration, Weight loss, Adipsia… • Outcome: Ongoing
- Report ID: GBR-USFDACVM-2025-GB-000057
- Serious AE: Yes
- Treated For AE: No
- Sex: Female
- Age: 15.00 Year
- Case-reported brand: MSK
- Case-reported manufacturer: MSK
- Route: Unknown
Cat, Domestic Shorthair, Female, 14 year • Drug: MSK, Unassigned, Unknown • Reactions: Blood in vomit, Tiredness (lethargy), Abdominal pain, Anaemia NOS, Elevated alanine aminotransferase… • Outcome: Euthanized
- Report ID: USA-USFDACVM-2025-US-047564
- Serious AE: Yes
- Treated For AE: Yes
- Sex: Female
- Age: 14.00 Year
- Case-reported brand: MSK
- Case-reported manufacturer: MSK
- Route: Unknown
- Form: Unassigned
Cat, Domestic Mediumhair, Male, 5 year, 4.06 kilogram • Drug: MSK, Unassigned, Unknown • Reactions: Dehiscence, Jaw disorder, Vomiting, Tiredness (lethargy), Loss of appetite… • Outcome: Ongoing
- Report ID: USA-USFDACVM-2025-US-037529
- Serious AE: Yes
- Treated For AE: Yes
- Sex: Male
- Age: 5.00 Year
- Weight: 4.060 Kilogram
- Case-reported brand: MSK
- Case-reported manufacturer: MSK
- Route: Unknown
- Form: Unassigned
Data source: FDA openFDA Animal & Veterinary adverse event reports.
Overdose Information
No approved overdose-management text is linked yet. If overdose is suspected, contact a veterinarian or emergency clinic immediately.
Storage & Handling
Store at room temperature.
Share Your Thoughts
Let others know your experience or advice regarding this medication.
This medication has not been reviewed by a veterinarian yet.