About sodium bicarbonate
Alkalinizing agent and antacid
Used for
- Relief of occasional heartburn or acid indigestion
- Treatment of metabolic acidosis under medical supervision
- Urine alkalinization in selected medical situations
Usual adult dose
For occasional heartburn, 325–2,000 mg dissolved in water every 4 hours as needed; follow product labeling.
Common side effects
- Gas and stomach cramps
- Nausea or vomiting
- Increased thirst or swelling
- High blood sodium or low potassium
Important warnings
- Contains substantial sodium; caution with heart failure, kidney disease, or high blood pressure.
- Frequent use can cause serious acid–base and electrolyte problems.
- Separate from other medicines by at least 2 hours when possible.
- Seek urgent care after overdose or severe symptoms.
Pregnancy
Occasional use may be acceptable, but avoid prolonged or high-dose use because of sodium and fluid risks.
Breastfeeding
Generally compatible when used occasionally as directed; excessive use may affect maternal fluid and electrolyte balance.
Interactions
- Can reduce absorption of medicines such as iron, tetracyclines, and some antifungals.
- May alter elimination of medicines including lithium, salicylates, and stimulants.
- Can increase sodium-related risks with corticosteroids or other sodium-containing products.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.