Omeprazole is a medication classified as a proton-pump inhibitor (PPI). It works by decreasing the amount of acid produced in the stomach. Omeprazole is commonly used to treat conditions such as gastroesophageal reflux disease (GERD), heartburn, stomach ulcers, and a rare condition called Zollinger-Ellison syndrome, which involves excessive acid production. It is available as both a prescription and over-the-counter medication, typically in delayed-release capsule or tablet form. The 'Prilosec' brand name often refers to over-the-counter omeprazole formulations (source: MedlinePlus). Its effects are not immediate; it typically takes a few days for the full acid-reducing benefits to become apparent.
Deep dive
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Known interactions
Category rule: supplement × medication
Note
Some supplements change how the body processes medications (absorption, liver enzymes, or additive effects).
Specific pairs are checked against a licensed drug database and shown with their own severity. Always confirm with your provider or pharmacist.
Category rule: vitamin × medication
Note
Certain vitamins interact with specific medications (e.g., vitamin K with blood thinners).
Specific pairs are checked against a licensed source; confirm with your provider.
Monitor TSH after starting/stopping PPI; dose adjustment may be needed.
Frequently asked
Sources referenced
- NIH MedlinePlus
- DrugBank
- Mayo Clinic
- FDA label (Omeprazole, prescribing information)
- Cochrane Library
- PubChem
DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.
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