GERD Home > Pepcid Dosage

A person's age is among the factors that can affect Pepcid dosing. For example, the recommended Pepcid dosage for treating gastroesophageal reflux disease (GERD) in adults is 20 mg, taken twice daily for up to six weeks. However, for children ages 1 to 16, the recommended Pepcid dose for treating GERD is 0.5 mg per kg (about 0.23 mg per pound), taken twice daily, up to a maximum of 40 mg twice a day. Also, the recommended Pepcid dosage for treating ulcers in adults is 40 mg daily, while the Pepcid dosage for treating ulcers in children ages 1 to 16 is 0.5 mg per kg per day (about 0.23 mg per pound per day).

Pepcid Dosage: An Overview

The dose of Pepcid® (famotidine) that your healthcare provider recommends will vary depending on a number of factors, including:
  • Your age
  • The medical condition that you are being treated for
  • Other medical conditions you may have
  • Other medications you are currently taking.
As always, do not adjust your dose unless your healthcare provider specifically instructs you to do so.

Pepcid Dosage for Adults

The following sections explain the dosing guidelines when Pepcid is used to treat conditions affecting the digestive tract in adults.
Pepcid Dosage for Duodenal Ulcers
The recommended Pepcid dose for treating duodenal ulcers (upper intestinal ulcers) is Pepcid 40 mg, taken at bedtime; or Pepcid 20 mg, taken twice daily. Pepcid can also be used to prevent duodenal ulcers from returning. After the ulcer is healed, the dose to prevent future duodenal ulcers is Pepcid 20 mg, taken once daily at bedtime.
Pepcid Dosage for Gastric Ulcers
The recommended Pepcid dosage for treating gastric (stomach) ulcers is Pepcid 40 mg, taken at bedtime.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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