Nexium vs. Pepcid

See how Nexium and Pepcid compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Nexium is a proton pump inhibitor that shuts down acid production more completely than Pepcid, making it the stronger choice for healing erosive esophagitis.

  • Pepcid is an H2 blocker that starts relieving heartburn within about an hour, faster than Nexium, though its effect can wear off with continued daily use.

  • Both drugs treat GERD, but Nexium also covers H. pylori eradication and NSAID-ulcer prevention, uses that Pepcid's FDA label does not include.

Nexium vs. Pepcid Drug Summary

Nexium

Nexium (esomeprazole) is a proton pump inhibitor that blocks acid-producing pumps in the stomach lining to treat GERD, erosive esophagitis, and related acid conditions. It is usually taken once daily as a delayed-release capsule or oral suspension, with some conditions requiring twice-daily dosing or a short IV course in the hospital.

Pepcid

Pepcid (famotidine) is an H2 blocker that reduces stomach acid by blocking histamine receptors, used to treat ulcers, GERD, and erosive esophagitis. It is typically taken once or twice daily as a tablet, and it also comes as a liquid suspension or IV injection for patients who cannot take it by mouth.

Nexium vs. Pepcid Side Effects

Nexium

Most common
headache (up to 5.5%)
diarrhea (up to 4%)
abdominal pain (up to 4%)
nausea (>1%)

Pepcid

Most common
headache (up to 4.7%)
diarrhea (up to 1.7%)
dizziness (up to 1.3%)
constipation (up to 1.2%)

Nexium vs. Pepcid Dosage

Nexium

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 20 mg once daily Weeks 1-4
Maximum dose 20-40 mg IV once daily If needed
Dose changes 3 increases As tolerated

Pepcid

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 40 mg once daily At the start
Maximum dose 20 mg once daily If needed
Dose changes 3 increases As tolerated

Nexium vs. Pepcid Indications

Nexium

Nexium is FDA-approved for a broad range of acid-related conditions, from healing erosive esophagitis to short-term relief of heartburn and GERD symptoms. It is also approved for H. pylori eradication, NSAID-associated ulcer risk reduction, and rare hypersecretory disorders like Zollinger-Ellison syndrome. Pediatric approval extends down to age 1 month for esophagitis healing.

  • Healing of erosive esophagitis (adults and ages 12-17)

  • Short-term treatment of heartburn and GERD symptoms

  • H. pylori eradication with antibiotics

  • Risk reduction of NSAID-related stomach ulcers

Pepcid

Pepcid is FDA-approved to heal active duodenal and gastric ulcers, treat non-erosive and erosive GERD, and manage hypersecretory conditions like Zollinger-Ellison syndrome. It is approved for adults and pediatric patients weighing 40 kg or more, with other formulations available for smaller children. Unlike Nexium, it is not approved for H. pylori eradication or NSAID ulcer prevention.

  • Healing of active duodenal and gastric ulcers

  • Short-term treatment of GERD symptoms, erosive or not

  • Reducing the risk of duodenal ulcer recurrence

  • Zollinger-Ellison syndrome and other hypersecretory conditions

Nexium vs. Pepcid Pros and Cons

Nexium

Nexium belongs to the proton pump inhibitor class, which shuts down acid production more completely than H2 blockers like Pepcid, making it a preferred option for healing more severe esophagitis. It is available in prescription and over-the-counter strengths, plus an IV form for hospitalized patients.

Pros

  • Heals severe erosive esophagitis more effectively than H2 blockers

  • Covers H. pylori eradication and NSAID-ulcer prevention, which Pepcid does not

  • Once-daily dosing for most approved uses

  • Approved down to 1 month old for esophagitis healing

Cons

  • Long-term, high-dose use is linked to increased fracture risk

  • Takes longer to fully relieve symptoms than a fast-acting H2 blocker

  • Higher list price, roughly $160 to $280 per month without insurance, before savings programs

  • Not approved for GERD symptoms in infants under 1 year, only esophagitis

Pepcid

Pepcid belongs to the H2 blocker class, working faster than Nexium for quick heartburn relief but offering less potent acid suppression for healing more severe esophagitis. It is also available over the counter, as a liquid suspension, and as an IV injection for hospital use.

Pros

  • Starts relieving heartburn within about an hour

  • Carries an FDA-approved indication for reducing duodenal ulcer recurrence

  • No established long-term fracture-risk warning like PPIs carry

  • Lower list price, roughly $10 to $100 per month without insurance, before savings programs

Cons

  • Less effective than PPIs at healing more severe erosive esophagitis

  • Requires twice-daily dosing for GERD and esophagitis, versus once-daily PPI options

  • Not approved for H. pylori eradication or NSAID-ulcer prevention

  • Dose must be lowered in moderate to severe kidney impairment due to CNS risks

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