Pantoprazole: study card

Pantoprazole — Proton pump inhibitor (PPI). Study the mechanism, listed uses and warnings from the US label on one sourced card.

Generic name
Pantoprazole
Class
Proton pump inhibitor (PPI)
Mechanism
Covalently binds the H+/K+ ATPase of the gastric parietal cell, suppressing the final step of acid production, basal and stimulated.
Used for
Short-term healing and symptom relief of GERD-associated erosive esophagitis in adults and children aged 5 years and older; Maintenance of healed erosive esophagitis and reduction of heartburn relapse in adults with GERD; Long-term treatment of pathological hypersecretory conditions, including Zollinger-Ellison syndrome, in adults
Common side effects
Headache; Diarrhea; Nausea; Abdominal pain
Warnings
C. difficile-associated diarrhea; Bone fracture with long-term use; Vitamin B12 deficiency
Interactions
Rilpivirine-containing antiretrovirals; Warfarin; Methotrexate

Brand questions use only name pairings verified against the linked product source. Unverified pairings are withheld from these questions; the other study content remains available.

Drug class families: Proton pump inhibitors

Read the source label ↗

Label date: 20260812 · For learning, not clinical decisions. US label and brand information; always consult the current source.

Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.

Pronunciation

Pantoprazole: pan-TOE-pra-zole

Shared name ending: -prazole · Omeprazole, Esomeprazole magnesium

Pronunciation is shown for the US English generic name. A name ending is a memory cue, not a classification rule.

Other drugs in the same class

Proton pump inhibitors: Esomeprazole magnesium, Omeprazole

Body system

GI · 22 Drug cards

Compare with related cards

Omeprazole

Same class family: Proton pump inhibitors

Mechanism: Substituted benzimidazole that inhibits the H+/K+ ATPase (proton pump) of the gastric parietal cell, blocking the final step of acid secretion.

On both cards: Common side effects — Headache; Diarrhea; Nausea; Abdominal pain · Warnings — C. difficile-associated diarrhea; Bone fracture with long-term use · Interactions — Warfarin

Only on the Omeprazole card: Used for — Short-term treatment of active duodenal or benign gastric ulcer in adults; H. pylori eradication with the specified antibiotics in adults with duodenal ulcer disease; Short-term symptomatic GERD or erosive esophagitis treatment, and maintenance of healed erosive esophagitis, in patients aged 2 years and older; Long-term treatment of pathological hypersecretory conditions in adults · Common side effects — Flatulence · Warnings — Acute tubulointerstitial nephritis · Interactions — Clopidogrel; Rilpivirine, atazanavir, nelfinavir

Esomeprazole magnesium

Same class family: Proton pump inhibitors

Mechanism: Converted in the parietal cell to an active inhibitor that blocks the H+/K+ ATPase (proton pump), suppressing gastric acid secretion.

On both cards: Common side effects — Headache; Diarrhea; Nausea; Abdominal pain · Warnings — C. difficile-associated diarrhea; Bone fracture with long-term use

Only on the Esomeprazole magnesium card: Used for — Short-term erosive-esophagitis healing in adults and ages 12–17; maintenance of healing in adults; Short-term heartburn and other GERD symptoms in adults and ages 12–17; Reduce NSAID-associated gastric-ulcer risk in adults receiving continuous NSAIDs who are aged 60 or older and/or have a documented gastric-ulcer history; With amoxicillin and clarithromycin, eradicate H. pylori in adults with active duodenal ulcer or a history within 5 years to reduce recurrence · Common side effects — Flatulence · Warnings — Acute tubulointerstitial nephritis · Interactions — Clopidogrel; Some antiretrovirals (e.g., rilpivirine)

Mesalamine

Same body system: GI

Mechanism: 5-ASA has an incompletely understood mechanism that appears to involve local anti-inflammatory effects on colonic epithelium; inhibition of prostanoid and leukotriene production is a possible mechanism.

On both cards: Common side effects — Headache; Diarrhea; Nausea

Only on the Mesalamine card: Used for — Maintenance of ulcerative-colitis remission in adults, for the cited extended-release capsules · Common side effects — Upper abdominal pain; Nasopharyngitis · Warnings — Renal impairment; Acute intolerance syndrome; Salicylate hypersensitivity (contraindicated) · Interactions — Nephrotoxic agents incl. NSAIDs; Azathioprine / 6-mercaptopurine; Antacids

An item counts as shared only when both cards use the same wording. If a card does not list an item, that is not a statement that the effect never occurs.