What is the brand name for Omeprazole?
The brand name for Omeprazole is Prilosec.
PTCE Top 200 · #10
Omeprazole
Prilosec
Omeprazole is the generic name for the brand-name drug Prilosec. It is a ppi (proton pump inhibitor) used to treat GERD, ulcers. On the PTCE Top 200 drug list, Omeprazole ranks #10 and is one of the most frequently tested gastrointestinal medications — commonly quizzed on its brand–generic pair, drug class, and key side effects.
| Generic name | Omeprazole |
|---|---|
| Brand name(s) | Prilosec |
| Drug class | PPI (proton pump inhibitor) |
| Class group | Gastrointestinal |
| Common use | GERD, ulcers |
| DEA schedule | Unscheduled |
| Availability | Both prescription and OTC |
What is Omeprazole used for?
Proton pump inhibitor (PPI) for GERD/erosive esophagitis; also used for certain ulcer conditions and hypersecretory states.
What drug class is Omeprazole?
Omeprazole is a PPI (proton pump inhibitor) in the Gastrointestinal group. Knowing the class is the fastest way to predict its uses, side effects, and the brand↔generic pairs the PTCE tests.
Common side effects of Omeprazole
- arrow_rightHeadache
- arrow_rightAbdominal pain
- arrow_rightDiarrhea
- arrow_rightNausea
- arrow_rightGas
Major interactions
- arrow_rightAvoid concomitant use with clopidogrel (omeprazole inhibits CYP2C19, reducing clopidogrel activation)
- arrow_rightDrugs needing acidic pH for absorption (e.g., ketoconazole/atazanavir) may be affected
- arrow_rightWarfarin: monitor INR with start/stop
- arrow_rightHigh‑dose methotrexate: PPIs may increase methotrexate levels/toxicity
Is Omeprazole a controlled substance?
No. Omeprazole is not a federally controlled substance (it is unscheduled by the DEA).
How to remember Omeprazole (PTCE mnemonic)
PRILOsec PRIES acid off — omepra-ZOLE puts the pump 'a-SLEEP'. 30 min before meals; long-term ↓Mg/B12, ↑C. diff.
lightbulb
PTCE exam tip
The suffix -prazole marks a proton pump inhibitor (PPI). Omeprazole comes both OTC and Rx — don't confuse PPIs with H2 blockers like famotidine.
Omeprazole FAQ
What is Omeprazole used for?
Omeprazole is used to treat GERD, ulcers. Proton pump inhibitor (PPI) for GERD/erosive esophagitis; also used for certain ulcer conditions and hypersecretory states.
What drug class is Omeprazole?
Omeprazole is a PPI (proton pump inhibitor) (Gastrointestinal group).
Is Omeprazole a controlled substance?
No. Omeprazole is not a federally controlled substance (it is unscheduled by the DEA).
Related drugs in the Gastrointestinal group
Drill Omeprazole the way the PTCE asks it
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Last reviewed June 25, 2026. Educational use only — not medical advice. Verify clinical specifics with your pharmacist or a current label source such as DailyMed. RxReflex is not affiliated with or endorsed by the Pharmacy Technician Certification Board (PTCB).