Prevacid vs. Protonix
See how Prevacid and Protonix compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Both Prevacid and Protonix are proton pump inhibitors that reduce stomach acid to treat GERD and related conditions, but they differ in available forms and FDA-approved age ranges.
Prevacid is available over the counter, while Protonix requires a prescription and is approved for use in children as young as 1 year old.
Both drugs carry similar long-term risks, including bone fracture, low magnesium, and C. difficile infection, so duration of use should be discussed with a doctor.
Prevacid vs. Protonix Drug Summary
Prevacid
Prevacid (lansoprazole) is a proton pump inhibitor used to treat GERD, ulcers, and hypersecretory conditions by reducing stomach acid production. It comes as a delayed-release capsule, an orally disintegrating tablet, or an IV injection, and is also sold over the counter for frequent heartburn.
Protonix
Protonix (pantoprazole) is also a proton pump inhibitor that lowers stomach acid to heal erosive esophagitis caused by GERD and to treat hypersecretory conditions. It's taken as a delayed-release tablet, an oral suspension, or an IV infusion, and is available by prescription only.
Prevacid vs. Protonix Side Effects
Prevacid
Protonix
Prevacid vs. Protonix Dosage
Prevacid
Protonix
| STAGE | DOSE | WHEN |
| Starting dose | 15 mg once daily | At the start |
| Maximum dose | 60 mg once daily | If needed |
| Dose changes | 3 increases | As tolerated |
| STAGE | DOSE | WHEN |
| Starting dose | 40 mg once daily | Weeks 1-8 |
| Maximum dose | 80 mg twice daily | If needed |
| Dose changes | 2 increases | As tolerated |
Prevacid
| STAGE | DOSE | WHEN |
| Starting dose | 15 mg once daily | At the start |
| Maximum dose | 60 mg once daily | If needed |
| Dose changes | 3 increases | As tolerated |
Protonix
| STAGE | DOSE | WHEN |
| Starting dose | 40 mg once daily | Weeks 1-8 |
| Maximum dose | 80 mg twice daily | If needed |
| Dose changes | 2 increases | As tolerated |
Prevacid vs. Protonix Indications
Prevacid
Prevacid is FDA-approved to heal duodenal and gastric ulcers, treat erosive esophagitis, manage GERD, and eradicate H. pylori as part of triple therapy. It's also used for pathological hypersecretory conditions like Zollinger-Ellison syndrome and to lower the risk of NSAID-related stomach ulcers.
Duodenal ulcer healing and maintenance
Gastric ulcer healing
Erosive esophagitis healing and maintenance
GERD treatment
H. pylori eradication (triple therapy)
Protonix
Protonix is FDA-approved for short-term treatment and maintenance of erosive esophagitis caused by GERD, as well as for pathological hypersecretory conditions such as Zollinger-Ellison syndrome. It is not intended to provide immediate relief of heartburn symptoms.
Short-term erosive esophagitis treatment
Maintenance of erosive esophagitis healing
Zollinger-Ellison syndrome and hypersecretory conditions
Pediatric use for short-term GERD/EE (ages 1+)
IV formulation for patients unable to take oral medication
Prevacid vs. Protonix Pros and Cons
Prevacid
Prevacid's availability in an over-the-counter form and its multiple delivery formats make it a flexible option for many patients, and its broad set of approved uses covers ulcer prevention and H. pylori therapy that Protonix does not address. Both drugs carry similar long-term risks tied to prolonged acid suppression.
Pros
Available over the counter as well as by prescription
Comes in capsule, orally disintegrating tablet, and IV forms
Approved for H. pylori eradication and NSAID-ulcer risk reduction
Cons
Not approved for infants under 1 year old
Long-term use linked to fundic gland polyps
Narrower pediatric approval data than Protonix
Protonix
Protonix's IV and oral suspension options, along with its pediatric approval down to age 1, make it a practical choice for patients who need alternative dosing forms or younger treatment. It carries a narrower set of FDA-approved uses than Prevacid and is prescription-only, without an over-the-counter option.
Pros
FDA-approved for children as young as 1 year old
Available as an oral suspension for those who can't swallow tablets
Offers a high-dose IV option for hypersecretory conditions
Cons
Not sold over the counter; prescription only
Not intended for immediate relief of heartburn symptoms
Narrower set of FDA-approved uses (no H. pylori or NSAID-ulcer indication)
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