Ingredient

Sodium Alginate

Sodium alginate is a drug component that neutralizes stomach acid and protects the gastric mucosa.

See medicines used for Digestion / Gastritis / Heartburn
All medicines
56
Single ingredient
39
Combination
17
Prescription medication
39
OTC medication
17

MFDS ingredient code M040385

What does it do?

Sodium alginate is an ingredient used in the treatment of gastrointestinal diseases, primarily used to relieve discomfort caused by excessive stomach acid. This ingredient reacts with stomach acid to protect the gastric mucosa.

Sodium alginate meets stomach acid to form a gel-like protective layer that covers the stomach wall. This protective layer prevents stomach acid from irritating the gastric mucosa, alleviating symptoms.

Commonly used for

Approved uses differ by product. Check each product's information for its actual use.

Good to know

Sodium alginate differentiates itself from other antacids not only by neutralizing stomach acid but also by creating a physical protective layer on the gastric mucosa. This makes it effective in preventing damage to the gastric mucosa.

Medicines containing this ingredient

Even with the same ingredient, strength, dosage form and how it is taken can differ.

Category
Dosage form
Strength
Category

56 total

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Even with the same ingredient, dosage and approved uses can differ by strength, dosage form and combined ingredients. Check each product's information before taking it.

Combined ingredients

Ingredients used together with this ingredient in combination products.

Questions about this ingredient

  • QIs it okay to take it with other gastrointestinal medications?

    Since sodium alginate reduces discomfort caused by gastric acid, it may overlap in components or effects if taken with antacids or other similar gastrointestinals. If you plan to take other medications, please show them to your pharmacist and confirm the method of use.

    Answers 1 · 2026.09.14

  • QWhat is the role of sodium alginate in stomach-soothing medications?

    Sodium alginate forms a gel-like protective layer when it comes into contact with gastric acid, covering the stomach wall. This protective layer helps to prevent irritation of the gastric mucosa by gastric acid, alleviating discomfort such as heartburn and aiding in the prevention of gastric mucosal damage.

    Answers 1 · 2026.09.14

For anything that needs medical judgment, consult a doctor or pharmacist.

SourceKorea Ministry of Food and Drug Safety (Drug Safety Korea)

This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.