Cimetidine for Heartburn
Medically reviewed by a licensed pharmacist · Last reviewed 6/13/2026
Dose
200mg by mouth up to twice daily as needed for heartburn prevention, or 800mg at bedtime. Max 800mg/day unless directed by physician. Take 30 minutes before meals that trigger heartburn.
What to watch for
- Many cyp interactions
Not for children under 12.
Sources
- FDA OTC Monograph
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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.