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omeprazole sodium bicarbonate

Generic: Omeprazole, sodium bicarbonate

Under review·Sep 7, 2026
Manufacturer
Salix
RxCUI
616539
Route
ORAL
ICD-10 indication
K21.9

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About omeprazole sodium bicarbonate

What is this medication? Omeprazole sodium bicarbonate is a combination prescription medication used to treat various conditions caused by excessive stomach acid. It contains omeprazole, which is a proton pump inhibitor that reduces acid production, and sodium bicarbonate, which acts as an antacid. The sodium bicarbonate serves a specific purpose by protecting the omeprazole from being destroyed by stomach acid, allowing the medicine to be absorbed more quickly and efficiently into the bloodstream.

This medication is frequently prescribed for the short-term treatment of active duodenal or gastric ulcers and to promote the healing of erosive esophagitis. It is also used to manage symptoms of gastroesophageal reflux disease, commonly known as GERD, including persistent heartburn. By decreasing the overall level of acid in the digestive system, the medication helps provide relief from pain and discomfort while preventing further damage to the lining of the stomach and esophagus.

Copay & patient assistance

  • Patient Copay Amount: As little as $5
  • Maximum Annual Benefit Limit: Not Publicly Available
  • Core Eligibility Restrictions: Must have commercial (private) insurance; not valid for patients covered by federal or state government-funded programs (including Medicaid, Medicare, TRICARE, or VA); must be prescribed for an FDA-approved use; not valid for cash-paying customers; must be a resident of the USA; not valid for prescriptions filled at institution-based or nonparticipating pharmacies.
  • RxBIN, PCN, and Group numbers: Not Publicly Available (Assistance is facilitated automatically via eVoucherRx™ and Voucher on Demand™ at participating pharmacies)

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Prescribing information

From the FDA-approved label for omeprazole sodium bicarbonate. Official source: DailyMed (NLM) · Label effective Nov 4, 2025

Indications and usage
Use • treats frequent heartburn (occurs 2 or more days a week) • not intended for immediate relief of heartburn. This drug may take 1 to 4 days for full effect.
Dosage and administration
Directions • for adults 18 years of age and older • this product is to be used once a day (every 24 hours), every day for 14 days • it may take 1 to 4 days for full effect, although some people get complete relief of symptoms within 24 hours 14-Day Course of Treatment • swallow 1 capsule with a glass of water at least 1 hour before eating in the morning • take every day for 14 days • do not take more than 1 capsule a day • do not chew or crush the capsule • do not open capsule and sprinkle on food • do not use for more than 14 days unless directed by your doctor Repeated 14-Day Courses (if needed) • you may repeat a 14-day course every 4 months • do not take for more than 14 days or more often than every 4 months unless directed by a doctor • children under 18 years of age: ask a doctor. Heartburn in children may sometimes be caused by a serious condition.
Warnings
Warnings Allergy alert: • do not use if you are allergic to omeprazole. • omeprazole may cause severe skin reactions. Symptoms may include: • skin reddening • blisters • rash If an allergic reaction occurs, stop use and seek medical help right away. Do not use if you have: • trouble or pain swallowing food, vomiting with blood, or bloody or black stools • heartburn with lightheadedness, sweating or dizziness • chest pain or shoulder pain with shortness of breath; sweating; pain spreading to arms, neck or shoulders; or lightheadedness • frequent chest pain These may be signs of a serious condition. See your doctor. Ask a doctor before use if you have • had heartburn over 3 months. This may be a sign of a more serious condition. • frequent wheezing, particularly with heartburn • unexplained weight loss • nausea or vomiting • stomach pain • a sodium-restricted diet Ask a doctor or pharmacist before use if you are taking a prescription drug. Acid reducers may interact with certain prescription drugs. Stop use and ask a doctor if • your heartburn continues or worsens • you need to take this product for more than 14 days • you need to take more than 1 course of treatment every 4 months • you get diarrhea • you develop a rash or joint pain If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away (1-800-222-1222).

Label text is reproduced as-is from the FDA-approved label. We do not paraphrase, summarize, or omit. Content above is for informational purposes only and is not medical advice. Always consult your prescribing clinician or pharmacist before making decisions about your medication.

Conditions we've indexed resources for

Click a condition to see copay cards, grants, and PA rules specific to it. For the full list of FDA-approved indications, see Prescribing information above.

Medicare Part D coverage

How omeprazole sodium bicarbonate appears across Medicare Part D plan formularies nationally. Source: CMS monthly Prescription Drug Plan file (2026-07-31).

Covered by plans

1%

55 of 5,490 plans

Most common tier

Tier 4

On 57% of covering formularies

Prior authorization required

0%

of covering formularies

TierFormularies on this tierShare
Tier 1 (preferred generic)3
21%
Tier 4 (non-preferred brand)8
57%
Tier 5 (specialty)3
21%

Step therapy: 71% of formularies

Quantity limits: 29% of formularies

Coverage breadth: 14 of 65 formularies

How to read this:plans on the same formulary share tier + PA rules. Your specific plan's copay depends on (a) the tier above, (b) your plan's cost-share for that tier, (c) whether you're in the initial coverage phase or past the 2026 $2,000 out-of-pocket cap. For your exact plan, check its Summary of Benefits or log in to your Medicare.gov account. Copay cards don't apply to Medicare (federal law).

Prior authorization & coverage

PayerPAStep therapyCopay tier

Medicare Part D

Related drugs

How this page is sourced

  • Drug identity verified against openFDA NDC Directory.
  • Label text (when shown) originates from NLM DailyMed.
  • Copay and assistance URLs verified periodically; if you hit a broken link, tell us.