Omeprazole is a proton pump inhibitor that reduces the production of stomach acid. It is used to manage acid-related conditions, including gastroesophageal reflux disease (GERD), erosive esophagitis, and gastric or duodenal ulcers.
Bayview Pharmacy prepares omeprazole as an oral suspension and as delayed-release capsules in custom strengths for patients who cannot swallow standard capsules or who need a dose that is not manufactured commercially.
How does it work?
Omeprazole blocks the stomach's acid pump, the H+/K+ ATPase enzyme on acid-producing cells, which decreases the amount of acid made in the stomach (MedlinePlus).
What is it used for?
Providers use omeprazole for acid-related conditions such as GERD and frequent reflux, erosive esophagitis, and gastric or duodenal ulcers. The specific use and duration are determined by your provider.
Why a compounded liquid or custom capsule?
A compounded suspension or custom-strength capsule can help when swallowing a standard capsule is difficult or a commercial dose does not fit. This includes patients with dysphagia, pediatric patients, and people who are fed through a feeding tube, as well as those who need a dye- or filler-free preparation.
How is it used?
PPIs such as omeprazole are usually taken before a meal. Your provider sets the exact dose, timing, and how long to continue treatment based on your condition.
Side effects & safety
Omeprazole is generally well tolerated. Reported effects can include headache, abdominal pain, diarrhea or constipation, and nausea. Long-term use carries considerations your provider monitors, such as effects on vitamin B12, magnesium, and bone (MedlinePlus).
Who should not use it?
Omeprazole is not for anyone with a known allergy to it or to other proton pump inhibitors. Tell your provider about all medications you take, since omeprazole can interact with certain drugs such as clopidogrel. Your provider reviews your history before prescribing.
How should it be stored?
Store as directed on the label, away from excess heat and moisture, and keep it out of reach of children. Follow the beyond-use date provided with your preparation.
Why is this compounded?
Compounding lets Bayview provide omeprazole in a liquid form or at a custom strength that a manufactured product does not offer, so patients who cannot use the commercial capsule can still receive the medication their provider prescribes.
Clinical details for prescribers
Regulatory status. Omeprazole is not a controlled substance and is FDA-approved in commercial capsule and OTC forms. The compounded buffered oral suspension and custom-strength delayed-release capsules serve patients who cannot use commercial products and are not FDA-approved.
Formulation & dosing. Compounded as oral suspension in 2, 6, 8, and 10 mg/mL (SyrSpend or SuspendRx SF Alka) and delayed-release capsules (20 mg and custom strengths). Commonly dosed once daily 30 minutes before the first meal; pediatric dosing is weight-based per the prescriber. The buffered suspension suits dysphagia, NG/G-tube administration, and doses between commercial strengths.
Counseling / clinical points:
- Use the lowest effective dose for the shortest appropriate duration; reassess chronic use periodically
- Long-term considerations: magnesium and B12 monitoring, and bone-density awareness in at-risk patients
- CYP2C19 interaction with clopidogrel — review antiplatelet regimens
- Counsel on rebound acid hypersecretion with abrupt discontinuation after prolonged use; consider tapering
- Shake the suspension before each dose and follow the labeled storage and beyond-use date
The buffered suspension protects omeprazole from gastric acid without enteric-coated granules, which is what makes accurate small-volume and tube dosing possible.
Omeprazole in this compounded form is a compounded medication and is not FDA-approved. This information is educational and is not medical advice. Your provider determines whether it is appropriate and sets the dose.
