Alginic Acid Potassium Bicarbonate
Alginic acid/potassium bicarbonate is a combination medication used to treat heartburn, acid reflux, and gastroesophageal reflux disease (GERD). The alginic acid, derived from seaweed, reacts with potassium bicarbonate to form a protective foam barrier that floats on top of stomach contents, preventing acid from flowing back into the esophagus. This medication is typically taken after meals and at bedtime for optimal symptom relief.
Alginic acid/potassium bicarbonate provides relief from heartburn and acid reflux by neutralizing stomach acid and creating a protective foam barrier in the esophagus.
Key facts at a glance
- RxNorm
- 1008365
- Generic
- Alginic Acid / Potassium Bicarbonate
- Class
- multi-ingredient
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
This medication is primarily used to treat occasional heartburn, gastroesophageal reflux disease (GERD), and symptoms of acid indigestion. It is particularly useful for nighttime heartburn relief and may help reduce the frequency of regurgitation.
Potassium bicarbonate acts as an antacid, neutralizing excess stomach acid. Alginic acid, derived from seaweed, reacts with the bicarbonate to form a raft-like foam that floats on top of the stomach contents. This foam creates a physical barrier that prevents stomach acid from flowing backward into the esophagus, providing protective coating of the esophageal lining.
This medication may interact with other drugs by affecting their absorption, so it should be taken separately from other oral medications. Patients with heart conditions should be aware of the potassium content. It is not intended for prolonged daily use without medical supervision, and individuals with kidney disease should consult a healthcare provider before use. Sodium content may be relevant for patients on restricted diets.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy