Famotidine for Heartburn
Medically reviewed by a licensed pharmacist · Last reviewed 5/23/2026
Dose
20mg by mouth once or twice daily. Take 30-60 minutes before known trigger meals OR at bedtime for nighttime symptoms. Max OTC dose 40mg/day.
What to watch for
- Severe renal impairment dose adjust
Not for children under 12.
Sources
- FDA OTC Monograph
- American College of Obstetricians and Gynecologists
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Where to buy
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.