Sodium Bicarbonate for Heartburn

Medically reviewed by a licensed pharmacist · Last reviewed 6/13/2026

Dose

1/2 teaspoon (2.3g) dissolved in water every 2 hours as needed. Max 4 doses/day for adults under 60, max 2 doses/day for adults 60+. Do not use for more than 2 weeks.

What to watch for

  • Sodium restriction
  • Htn

Not recommended in pregnancy — check with a pharmacist or your clinician first.

Not for children under 12.

Sources

  • FDA OTC Monograph

Where to buy

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This page is for general education and is not medical advice. It does not replace a consultation with a licensed pharmacist or your clinician. Always read and follow the product label. If symptoms are severe, worsening, or persistent, seek professional care.