TheraRadar
Data updated: May 26, 2026

PROTONIX (pantoprazole sodium)

Gastrointestinal Approved 2000-02-02

Protonix (pantoprazole sodium) for injection is indicated for adult patients with gastroesophageal reflux disease (GERD) and a history of erosive esophagitis for a treatment duration of up to 10 days. It is also indicated for the management of pathological hypersecretory conditions, including Zollinger-Ellison Syndrome. This injectable formulation is intended for use when oral therapy is not feasible. Its safety and effectiveness for the treatment of upper gastrointestinal bleeding have not been established.

Source: FDA Label • Pfizer

How PROTONIX Works

Pantoprazole is a proton pump inhibitor (PPI) that suppresses the final step of gastric acid production. It works by covalently binding to the (H+, K+)-ATPase enzyme system at the secretory surface of gastric parietal cells. This action inhibits both basal and stimulated gastric acid secretion, regardless of the stimulus. The covalent bond results in an antisecretory effect that persists for more than 24 hours.

5
Indications
--
Phase 3 Trials
26
Years on Market

Details

Status
Prescription
First Approved
2000-02-02
Patent Cliff
2026

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Routes
ORAL
Dosage Forms
TABLET, DELAYED RELEASE, FOR SUSPENSION, DELAYED RELEASE

Companies

Active Ingredient: PANTOPRAZOLE SODIUM

PROTONIX Approval History

2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
106 FDA actions from 2000 to 2023 · 2 indication expansions
Jul 2023 SUPPL
Label · Labeling
Mar 2022 SUPPL
Label · Labeling
Nov 2020 SUPPL
Label · Labeling

What PROTONIX Treats

4 indications

PROTONIX is approved for 4 conditions since its original approval in 2000. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Gastroesophageal Reflux Disease
  • Erosive Esophagitis
  • Pathological Hypersecretory Conditions
  • Zollinger-Ellison Syndrome
Source: FDA Label

PROTONIX Competitive Set

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Three rings of competition based on shared molecular targets and treated indications.

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

Drugs Similar to PROTONIX

3 of 15

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

ESOMEPRAZOLE MAGNESIUM
ESOMEPRAZOLE MAGNESIUM
4 shared
Cipla
FAMOTIDINE PRESERVATIVE FREE
FAMOTIDINE
4 shared
Viatris
Shared indications:
Gastroesophageal Reflux DiseaseErosive EsophagitisPathological Hypersecretory Conditions +1 more
NEXIUM
ESOMEPRAZOLE MAGNESIUM
4 shared
AstraZeneca
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Active Pipeline

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

PROTONIX FDA Label Details

Indications & Usage

FDA Label (PDF)

PROTONIX is indicated for the treatment of Gastroesophageal Reflux Disease; Erosive Esophagitis; Pathological Hypersecretory Conditions; Zollinger-Ellison Syndrome.

View full patent landscape →
2 OB patents · 1 families · 50 international docs across 29 countries

PROTONIX Patents & Exclusivity

Latest Patent: Dec 2026

Patents (2 active)

US7544370*PED Expires Dec 7, 2026
US7544370 Expires Jun 7, 2026
Source: FDA Orange Book

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Revenue Insights

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  • Historical trend analysis

Patent Timeline

  • Cliff: 2026
  • 2 active patents

Trial Analysis

  • Clinical trial tracking
  • Development stage analysis

Competitive Landscape

  • 15 similar drugs
  • Same target/indication analysis
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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.