potassium hydrogen carbonate + sodium alginate at a glance
Medicine class
Alginate reflux suppressant
Main role
Relieves symptoms caused by gastro-oesophageal reflux
Important contents
Contains sodium, potassium, calcium carbonate and parahydroxybenzoate preservatives
What is potassium hydrogen carbonate + sodium alginate used for?
The selected products are licensed for symptoms resulting from reflux of acid, bile and pepsin into the oesophagus.
Heartburn, acid regurgitation and reflux-related indigestion
Reflux symptoms associated with hiatus hernia, reflux oesophagitis, pregnancy or previous gastric surgery
Reflux-associated hoarseness, voice disturbance, sore throat or cough
Reflux symptoms during treatment with, or after withdrawal of, acid-suppressing therapy
How does potassium hydrogen carbonate + sodium alginate work?
In the acidic stomach, the ingredients form a near-neutral alginic-acid gel that floats on stomach contents. This physical raft obstructs reflux and can help shield the oesophagus from acid, pepsin and bile; its action does not depend on systemic absorption.
potassium hydrogen carbonate + sodium alginate preparations and strengths
Oral suspension
Route: Oral
Strengths: 1000 mg + 200 mg + 10 mg, 1000 mg + 200 mg/10 mL
How to take potassium hydrogen carbonate + sodium alginate
Take the suspension by mouth according to its label or a clinician’s instructions.
Shake the bottle well before measuring.
Use an appropriate medicine measure rather than a household spoon.
Children under 12 years should receive it only on medical advice.
Ask a pharmacist or prescriber if symptoms persist or recur frequently.
potassium hydrogen carbonate + sodium alginate side effects
Common or expected effects
- Uncommon: diarrhoea, nausea or vomiting.
Get urgent medical advice
- Very rare: severe allergic or anaphylactoid reactions, hives or bronchospasm.
- Seek urgent help for breathing difficulty or swelling of the face, lips, tongue or throat.
potassium hydrogen carbonate + sodium alginate in pregnancy
The selected products are licensed for reflux symptoms during pregnancy and may be used when clinically needed. Check with a pharmacist, midwife or doctor before using indigestion treatments, particularly if symptoms persist or other health conditions apply.
potassium hydrogen carbonate + sodium alginate while breastfeeding
Alginate preparations are considered acceptable during breastfeeding because oral absorption is poor and infant exposure is expected to be minimal. Specialist assessment is appropriate for premature or unwell infants, or where the breastfeeding parent has significant kidney, heart or electrolyte problems.
potassium hydrogen carbonate + sodium alginate interactions
This product may reduce or delay absorption of other oral medicines, so separate administration is recommended.
Tetracycline antibiotics
Absorption of the antibiotic may be reduced.
Fluoroquinolone antibiotics
Gastrointestinal absorption may be reduced.
Common questions about potassium hydrogen carbonate + sodium alginate
Answers are fully visible for fast scanning and source review.
What is potassium hydrogen carbonate + sodium alginate used for?
It relieves reflux symptoms including heartburn, acid regurgitation and reflux-related indigestion.
Does it reduce stomach-acid production?
No. It mainly forms a physical raft that obstructs reflux and protects the oesophagus.
Sources
These sources were used to prepare and review this medicine page.
Prepared and reviewed by the iatroX editorial team.