Pantoprazole
Pronunciation: (pan-TOE-pra-zole).
- Generic name
- Pantoprazole
- Brand names
- Pantoprazole, Somac, Pantocid, Pantoloc, Protium, Pantop
- Drug class
- Proton Pump Inhibitor (PPI)
Availability and supply rules vary by country
Trade names by country: United States · Canada
Australia: · Full directory
What Pantoprazole is and how it works
Uses, formulations, monitoring, and supply rules can differ by patient, product, and country. Follow the exact local product information and professional advice.
Mechanism of action: how Pantoprazole works
Pantoprazole is a selective and irreversible proton pump inhibitor (PPI) that suppresses gastric acid secretion by inhibiting the H+/K+ ATPase enzyme system at the secretory surface of gastric parietal cells. This action blocks the final step in acid production, leading to a significant and sustained reduction in gastric acidity. (1)
What Pantoprazole is used for
Erosive Esophagitis associated with Gastroesophageal Reflux Disease (GERD)
Erosive Esophagitis associated with Gastroesophageal Reflux Disease (GERD) (1)
Maintenance of Healing of Erosive Esophagitis
Maintenance of Healing of Erosive Esophagitis (1)
Pathological Hypersecretory Conditions (e.g., Zollinger-Ellison Syndrome)
Pathological Hypersecretory Conditions (e.g., Zollinger-Ellison Syndrome) (1)
Duodenal Ulcer associated with Helicobacter pylori (in combination with antibiotics)
Duodenal Ulcer associated with Helicobacter pylori (in combination with antibiotics) (1)
Before taking Pantoprazole
Do not take / not appropriate for
- Contraindicated in patients with known hypersensitivity to pantoprazole or other substituted benzimidazoles. (Contraindication) (1)
- Long-term use may increase the risk of gastric malignancy masking. (Contraindication) (1)
Tell your clinician about
(1)How to take Pantoprazole
- General Instructions: Take Zovanta exactly as prescribed by your healthcare provider. Do not increase your dose or take it more often than directed.. Adult Dosing: For GERD and erosive esophagitis: 40 mg once daily, usually for up to 8 weeks. For maintenance or Zollinger-Ellison syndrome, dosing may be individualized.. Pediatric Dosing: For children 5 years and older (≥15 kg): 20 mg once daily for up to 8 weeks. Dosing for children under 5 years is not routinely recommended.. Administration: Swallow tablets whole with water, preferably before a meal. Do not crush, chew, or split the tablets. For intravenous use, administration should be performed by a healthcare professional.. When To Stop: Do not stop taking Zovanta suddenly without consulting your doctor, even if you feel better. Your doctor will advise when to discontinue.. Storage: Store at room temperature (20–25°C/68–77°F), away from moisture and heat. Keep out of reach of children.
- This page does not provide a dose calculator. Dosing must follow the prescriber, pharmacist, or product label.
Procedures and treatment changes
Tell the treating team before surgery, procedures, or any medicine change. Do not alter treatment without the responsible clinician. (1)
Missed dose
If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose—do not double up to catch up.
Overdose
In case of overdose, seek emergency medical attention or call your local poison control center immediately. Symptoms may include confusion, drowsiness, rapid heartbeat, or fainting. Supportive care is the mainstay of treatment. (1)
Side effects
Side effects and their urgency vary; report severe, persistent, or concerning symptoms to a healthcare professional.
Headache
Incidence: Reported in the clinician-authored database; frequency not established
Nausea
Incidence: Reported in the clinician-authored database; frequency not established
Diarrhea
Incidence: Reported in the clinician-authored database; frequency not established
Abdominal pain
Incidence: Reported in the clinician-authored database; frequency not established
Dizziness
Incidence: Reported in the clinician-authored database; frequency not established
Fractures (long-term use)
Incidence: Reported in the clinician-authored database; frequency not established
Clostridium difficile-associated diarrhea
Incidence: Reported in the clinician-authored database; frequency not established
Serious warnings
Long-term use may increase the risk of bone fractures, especially in older adults — serious
Symptoms: Long-term use may increase the risk of bone fractures, especially in older adults. May cause low magnesium levels with prolonged use. Increased risk of Clostridioides difficile infection in the colon. May mask symptoms of stomach cancer; report persistent symptoms to your doctor. Use with caution in patients with severe liver impairment.
Action: Follow the urgency stated and seek prompt or emergency care when indicated. (1)
Contraindications recorded in the clinician database — serious
Symptoms: Contraindications recorded in the clinician database: Contraindicated in patients with known hypersensitivity to pantoprazole or other substituted benzimidazoles. Use with caution in patients with severe hepatic impairment, osteoporosis, or those at risk for hypomagnesemia. Long-term use may increase the risk of gastric malignancy masking.
Action: Follow the urgency stated and seek prompt or emergency care when indicated. (1)
Interactions
| Medicine or test | Effect | Action |
|---|---|---|
| Recorded interactions | Zovanta (Pantoprazole) may interact with medications such as warfarin, methotrexate, HIV protease inhibitors (e.g., atazanavir), and certain antifungals. It can reduce the absorption of drugs that require stomach acid for absorption. Always inform your healthcare provider of all medications and supplements you are taking. | (1) |
Pregnancy, breastfeeding, kidney/liver function, age
Pregnancy
Published observational studies of pantoprazole use in pregnancy did not demonstrate an association with major malformations or other adverse pregnancy outcomes, but it is not definitively known whether pantoprazole can affect pregnancy or harm an unborn baby. Tell your healthcare provider if you are or plan to become pregnant so they can weigh the benefits and any uncertainty. (1)
Breastfeeding
Pantoprazole passes into breast milk. Maternal doses of 40 mg daily produce low levels in milk that would not be expected to cause adverse effects in most breastfed infants (detected after a single 40 mg dose without reported effects on the infant in available data), but tell your healthcare provider if you are breastfeeding so they can advise on monitoring. (1)
Children
Frequency: Not applicable. Weight Based: Not recommended for pediatric use. Max Daily Dose: Not applicable. Max Single Dose: Not applicable. Age Restrictions: Safety not established in children (1)
Renal_impairment
FDA label: pharmacokinetic parameters for pantoprazole in patients with severe renal impairment (including those on hemodialysis) were similar to healthy subjects, so no dosage adjustment is necessary based on renal function. In patients with hepatic impairment (mild to severe, Child-Pugh A to C), pantoprazole's half-life and AUC increase, but not more than the increases already seen in normal CYP2C19 poor metabolizers (for whom no dose adjustment is warranted either) — so no routine dosage adjustment is needed in hepatic impairment, though doses above 40 mg/day have not been studied in that population and should be avoided. (1)
Hepatic_impairment
FDA label: pharmacokinetic parameters for pantoprazole in patients with severe renal impairment (including those on hemodialysis) were similar to healthy subjects, so no dosage adjustment is necessary based on renal function. In patients with hepatic impairment (mild to severe, Child-Pugh A to C), pantoprazole's half-life and AUC increase, but not more than the increases already seen in normal CYP2C19 poor metabolizers (for whom no dose adjustment is warranted either) — so no routine dosage adjustment is needed in hepatic impairment, though doses above 40 mg/day have not been studied in that population and should be avoided. (1)
Monitoring
(1)Storage
Store pantoprazole tablets at controlled room temperature, 20-25°C (68-77°F), with brief excursions to 15-30°C (59-86°F) permitted, in a cool, dry place away from direct light, out of reach of children.
Professional information
Clinician-facing context only. This section does not replace current product labeling.
General
Indication: Erosive Esophagitis associated with Gastroesophageal Reflux Disease (GERD)
Dose summary: 40 mg once daily for up to 8 weeks for the treatment of erosive esophagitis associated with gastroesophageal reflux disease (GERD).
Renal context: FDA label: pharmacokinetic parameters for pantoprazole in patients with severe renal impairment, including those undergoing hemodialysis, were similar to healthy subjects. No dosage adjustment is necessary in patients with renal impairment or those undergoing hemodialysis. (1)
Hepatic guidance
FDA label: in patients with hepatic impairment (Child-Pugh A to C), pantoprazole's maximum concentration increases only slightly (about 1.5-fold), though half-life (7-9 hours) and AUC (5- to 7-fold) increase; these increases are no greater than those seen in CYP2C19 poor metabolizers, for whom no dosage adjustment is warranted. No routine dosage adjustment is needed for hepatic impairment, but doses above 40 mg/day have not been studied in hepatically impaired patients and should be avoided.
Frequently asked questions
What conditions does Zovanta (Pantoprazole) treat?
Zovanta is used to treat GERD, erosive esophagitis, Zollinger-Ellison syndrome, and to prevent stomach ulcers, especially in people taking NSAIDs.
How long does it take for Zovanta to work?
Most people begin to feel relief from heartburn and acid symptoms within a few days, but full healing of the esophagus may take several weeks.
Can I take Zovanta with food?
It is best taken before a meal, usually in the morning. Taking it with food may reduce its effectiveness.
Is Zovanta safe during pregnancy or breastfeeding?
Pantoprazole should only be used during pregnancy or breastfeeding if clearly needed and prescribed by your doctor. Discuss risks and benefits with your healthcare provider.
What should I do if I experience severe diarrhea while taking Zovanta?
Contact your doctor immediately, as this could be a sign of a serious intestinal infection (Clostridioides difficile).
Can I stop taking Zovanta suddenly?
Do not stop taking Zovanta without consulting your doctor, as symptoms may return or worsen. Your doctor will guide you on how to safely discontinue.
Does Zovanta interact with other medications?
Yes, Zovanta can interact with drugs like warfarin, methotrexate, HIV medications, and antifungals. Always inform your healthcare provider about all medicines you take.
What happens if I take too much Zovanta (Pantoprazole)?
Taking too much Zovanta (Pantoprazole) can lead to symptoms such as confusion, blurred vision, sweating, and rapid heartbeat. While serious overdose is rare, it is crucial to seek immediate emergency medical attention if you suspect an overdose. Always adhere to your prescribed dosage to ensure safe and effective treatment.
Can I drink alcohol while taking Zovanta (Pantoprazole)?
While there is no direct interaction between Zovanta (Pantoprazole) and alcohol, consuming alcohol can irritate the stomach lining and worsen symptoms of acid reflux or other gastrointestinal conditions that Zovanta is treating. It is generally advisable to limit or avoid alcohol intake to support the medication's effectiveness and promote healing.
Is Zovanta (Pantoprazole) safe during pregnancy?
Zovanta (Pantoprazole) is classified under a specific pregnancy category, indicating that its use during pregnancy requires careful consideration. It is essential to consult your healthcare provider if you are pregnant, planning to become pregnant, or breastfeeding. Your doctor will weigh the potential benefits against any risks to determine the most appropriate course of action for your individual health needs.
What is the mechanism of action of Pantoprazole?
Pantoprazole is a selective and irreversible proton pump inhibitor (PPI) that suppresses gastric acid secretion by inhibiting the H+/K+ ATPase enzyme system at the secretory surface of gastric parietal cells. This action blocks the final step in acid production, leading to a significant and sustained reduction in gastric acidity. (1)
What is the generic name of Pantoprazole?
The generic name is Pantoprazole. It is sold under brand names including Pantoprazole, Somac, Pantocid, Pantoloc, Protium, Pantop.
What class of drug is Pantoprazole?
Pantoprazole is classed as: Proton Pump Inhibitor (PPI).
References
- Zovanta (pantoprazole) — prescribing informationU.S. National Library of Medicine (DailyMed) · United States · accessed 2026-08-07 · source 1
- PROTONIX I.V. (PANTOPRAZOLE SODIUM) INJECTION, POWDER, FOR SOLUTION [CARDINAL HEALTH 107, LLC] — US prescribing information (DailyMed SPL)U.S. National Library of Medicine (DailyMed) · US · accessed 2026-08-14 · source 2
- Pantoprazole — patient drug information (MedlinePlus)U.S. National Library of Medicine (MedlinePlus) · US · accessed 2026-08-14 · source 3
- Pantoprazole Sodium — FDA approval record (Drugs@FDA ANDA215860)U.S. Food and Drug Administration · US · accessed 2026-08-14 · source 4
- Pantoprazole — RxNorm normalized drug concept (RXCUI 40790)U.S. National Library of Medicine (RxNorm) · US · accessed 2026-08-14 · source 5
Brand names by country
Single-ingredient Pantoprazole names are shown separately by country. Product availability, strengths, and supply rules can change; combination products are not included here.
Priority countries
United States
- Protonix I.V.40 mg0mL · wyeth pharmaceuticals llc, a subsidiary of pfizer inc.
- PANTOPRAZOLE SODIUM I.V.40 mg0mL · sandoz inc
- Protonix Delayed-Release20 mg, 40 mg · wyeth pharmaceuticals llc, a subsidiary of pfizer inc.
Canada
- PANTOLOC
- TECTA
- MYLAN-PANTOPRAZOLE T