Nexium vs. Prevacid

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

Key Takeaways

  • Nexium and Prevacid are both proton pump inhibitors that reduce stomach acid to treat GERD, erosive esophagitis, and ulcers, usually taken once daily before a meal.

  • Nexium is approved for infants as young as 1 month old for erosive esophagitis, while Prevacid is not approved for any child under 1 year old.

  • Prevacid comes as an orally disintegrating tablet and has a low-cost generic option, while Nexium is only available as capsules, suspension, or IV.

Nexium vs. Prevacid Drug Summary

Nexium

Nexium (esomeprazole magnesium) is a proton pump inhibitor that reduces stomach acid production to treat GERD, erosive esophagitis, and other acid-related conditions. It comes as a delayed-release capsule, an oral suspension, or an IV injection, and is usually taken once daily before eating.

Prevacid

Prevacid (lansoprazole) is also a proton pump inhibitor that lowers stomach acid to treat ulcers, GERD, and erosive esophagitis. It is available as a delayed-release capsule, an orally disintegrating tablet, or an IV injection, typically taken once daily before a meal.

Nexium vs. Prevacid Side Effects

Nexium

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

Prevacid

Most common
headache (up to 7%)
abdominal pain (up to 5%)
diarrhea (up to 3.8%)
nausea (up to 3%)

Nexium vs. Prevacid Dosage

Nexium

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 20 mg once daily Weeks 1-4
Maximum dose 40 mg once daily Weeks 1-4
Dose changes 1 increase As tolerated

Prevacid

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 30 mg once daily At the start
Maximum dose 30 mg twice daily If needed
Dose changes 1 increase As tolerated

Nexium vs. Prevacid Indications

Nexium

Nexium is FDA-approved to heal and maintain healing of erosive esophagitis, treat short-term heartburn and GERD symptoms, reduce the risk of NSAID-related stomach ulcers, and help eradicate H. pylori infection alongside antibiotics. It is also approved for rare acid-overproduction conditions such as Zollinger-Ellison syndrome.

  • Healing and maintenance of erosive esophagitis

  • Short-term treatment of heartburn and GERD

  • Risk reduction of NSAID-associated gastric ulcers

  • H. pylori eradication with antibiotics

  • Zollinger-Ellison syndrome and other hypersecretory conditions

Prevacid

Prevacid is FDA-approved to heal duodenal and gastric ulcers, treat erosive esophagitis and GERD, reduce the risk of NSAID-related stomach ulcers, and help eradicate H. pylori infection as part of triple therapy. It also treats rare acid-overproduction disorders such as Zollinger-Ellison syndrome.

  • Healing of duodenal and gastric ulcers

  • Treatment of erosive esophagitis and GERD

  • Risk reduction of NSAID-associated gastric ulcers

  • H. pylori eradication with antibiotics

  • Zollinger-Ellison syndrome and other hypersecretory conditions

Nexium vs. Prevacid Pros and Cons

Nexium

Nexium offers pediatric dosing down to 1 month old and a suspension form for patients who cannot swallow capsules, which sets it apart from Prevacid. It costs more than generic lansoprazole and does not come in an orally disintegrating tablet.

Pros

  • Approved for infants as young as 1 month old for erosive esophagitis, a broader pediatric range than Prevacid.

  • Available as an oral suspension for patients who cannot swallow capsules or need feeding-tube dosing.

  • Approved for maintenance of healed erosive esophagitis for as long as six months.

  • Formulated as the single S-isomer of omeprazole, giving prescribers a distinct PPI option if omeprazole has not worked well.

Cons

  • Typically costs more than generic lansoprazole, roughly $160 to $280 per month before savings programs.

  • Not approved for treating symptomatic GERD in infants younger than 1 year, only for erosive esophagitis in that age group.

  • Does not come in an orally disintegrating tablet form, unlike Prevacid's SoluTab option.

  • Labeling carries a specific warning for acute interstitial nephritis, a rare kidney reaction.

Prevacid

Prevacid has a long track record since 1995, an orally disintegrating tablet formulation, and a low-cost generic option. It carries stricter pediatric restrictions and a specific warning about fundic gland polyps with long-term use.

Pros

  • Available as a generic (lansoprazole) that typically costs roughly $14 to $530 per month depending on pharmacy and coverage, often less than typical Nexium pricing.

  • Offered as an orally disintegrating tablet (SoluTab), useful for patients who have difficulty swallowing.

  • Specifically approved for healing and maintenance of duodenal and gastric ulcers, not a listed Nexium use.

  • Longer track record, having been FDA approved since 1995, six years before Nexium.

Cons

  • Not approved for use in any child younger than 1 year old, a stricter restriction than Nexium's infant approval.

  • Trials reported higher rates of headache and abdominal pain than Nexium's label shows.

  • Long-term use is specifically linked to fundic gland polyps, a risk called out in its own warnings.

  • Its label includes a note on heart valve thickening seen in juvenile animal studies, not mentioned on Nexium's label.

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