Pepcid (famotidine) (famotidine) — Uses, Dosage, Side Effects & Safety

Drug class: Histamine-2 (H2) receptor antagonist

Overview

Pepcid (famotidine) is a medication used to treat conditions caused by excess stomach acid, such as heartburn, gastroesophageal reflux disease (GERD), peptic ulcers, and Zollinger-Ellison syndrome. It works by blocking histamine-2 (H2) receptors in the stomach lining, which reduces the amount of acid produced. By lowering stomach acid, famotidine helps relieve symptoms like burning pain, indigestion, and acid reflux. It can also promote healing of ulcers in the stomach and intestines. Pepcid is available over-the-counter for short-term relief of heartburn and by prescription for more serious acid-related disorders. Key points: Famotidine is generally well-tolerated, but it should be used as directed. Let your doctor know about any kidney problems, allergies, or other medications you are taking before starting Pepcid.

Therapeutic uses

  • Treatment of duodenal ulcers
  • Treatment of gastric ulcers
  • Treatment of gastroesophageal reflux disease (GERD)
  • Treatment of pathological hypersecretory conditions (e.g., Zollinger-Ellison syndrome)
  • Prevention of recurrent duodenal ulcers

Common side effects

  • Headache
  • Dizziness
  • Constipation
  • Diarrhea
  • Nausea
  • Vomiting
  • Arrhythmia
  • Seizures

Frequently Asked Questions about Pepcid (famotidine)

What is Pepcid?

Pepcid is the brand name for famotidine, an H2-receptor blocker that reduces stomach acid production.

What is the generic name for Pepcid?

Famotidine.

What is Pepcid used for?

GERD, heartburn, peptic ulcers, Zollinger-Ellison syndrome, prevention of NSAID-induced ulcers, stress ulcer prophylaxis.

Is Pepcid and famotidine the same thing?

Yes — Pepcid is the brand version of generic famotidine.

What is the difference between Pepcid and Pepcid AC?

Pepcid AC is the OTC lower-dose version (10 mg or 20 mg); prescription Pepcid is 20–40 mg.

What is Pepcid Complete?

Pepcid Complete combines famotidine 10 mg with calcium carbonate 800 mg + magnesium hydroxide 165 mg (antacids for instant relief).

Is Pepcid a PPI or H2 blocker?

H2 blocker (histamine-2 receptor antagonist).

How long does it take for Pepcid to work?

Starts working in 15–30 minutes; peak effect 1–3 hours.

Related Pepcid (famotidine) information

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.