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Pantoprazole

Common Brand Names: Protonix

Drug Information

Medically reviewed by Jessica Swirble, PharmD
Last updated on April 17, 2025

Drug Information | Side Effects | Use & Dosage | Request an Online Prescription

Quick facts:

  • Brand Name: Protonix
  • Generic Name: Pantoprazole
  • Uses: Treating gastroesophageal reflux disease (GERD), erosive esophagitis, and conditions involving excessive stomach acid such as Zollinger-Ellison syndrome
  • Drug Class: Proton Pump Inhibitor (PPI)
  • Availability: Prescription only
  • Generic Status: Yes
  • Controlled Substance: No

What is pantoprazole?

Pantoprazole is a medication used to treat damage to the esophagus from gastroesophageal reflux disease (GERD). It belongs to a class of medications known as proton pump inhibitors, which work by decreasing the production of stomach acid, which causes damage from GERD.

What conditions does pantoprazole treat?

Pantoprazole is used to treat conditions caused by excessive production of stomach acid. This includes:

  1. Damage from GERD: Stomach acid from GERD can damage the esophagus, leading to scarring. Pantoprazole decreases the production of stomach acid, allowing the damage to heal.

  2. Zollinger-Ellison syndrome: A rare disorder in which the stomach produces too much acid, leading to ulcers and esophageal damage.

How does pantoprazole work?

Pantoprazole belongs to a class of medications known as proton pump inhibitors. These drugs work by decreasing the production of stomach acid.

How do I take pantoprazole?

Pantoprazole is available in the following forms:

  • Delayed-release oral tablets
  • Oral suspension granules (powder)

The dosage and length of treatment depend on the condition being treated, its severity, and how you tolerate the medication.

Follow your healthcare provider's instructions regarding dosage and schedule. Do not exceed the prescribed dose or duration of treatment without consulting your provider.

How do I take pantoprazole?

Pantoprazole is available in various forms:

  • Oral tablets: Available in delayed-release form
  • Oral suspension granules: Powder form that is mixed with applesauce or apple juice before use

The oral granules can be sprinkled on 1 teaspoon of cool applesauce and swallowed within 10 minutes. Do not crush or chew the granules. The granules can also be mixed with 1 teaspoon of apple juice and then swallowed. The container should be rinsed with additional apple juice and then swallowed. Do not mix with other liquids or foods, including water.

The dosage and length of treatment depend on the condition being treated, its severity, and how you tolerate the medication.

Follow your healthcare provider's instructions regarding dosage and schedule. Do not exceed the prescribed dose or duration of treatment without consulting your provider.

How long until I feel better?

The effectiveness of pantoprazole and the time it takes to notice improvement can vary among individuals. For conditions like gastroesophageal reflux disease (GERD), you may start to feel relief from symptoms within a few days, but it can take up to several weeks for full therapeutic effects.

Continue taking pantoprazole as prescribed even if you start feeling better. Do not abruptly stop the medication, as it may lead to a return of symptoms or increased acid production.

Are there any other uses for pantoprazole?

While pantoprazole is primarily used for treating conditions involving excessive stomach acid, such as GERD and Zollinger-Ellison syndrome, healthcare providers may sometimes prescribe it off-label for other gastrointestinal conditions.

Discuss any alternative uses of pantoprazole with your healthcare provider.

Dosage forms of pantoprazole

Pantoprazole is available in the following dosage forms:

  • Delayed-release tablets: Typically available in 20 mg and 40 mg.
  • Oral suspension granules: Either sprinkled on applesauce or mixed with one teaspoon of apple juice. Available as a 40 mg dose per packet.

Generic versions of pantoprazole are available.

Pantoprazole is a prescription medication. You will need a valid prescription from a licensed healthcare provider to obtain this medication.

Side Effects and Precautions for Pantoprazole


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What are the side effects of pantoprazole?

The use of pantoprazole can lead to various side effects in some individuals.

Common mild side effects of pantoprazole use include:

  • Headache
  • Diarrhea
  • Nausea
  • Abdominal pain
  • Vomiting
  • Gas
  • Dizziness
  • Joint pain

More severe side effects of pantoprazole use can include:

  • Severe stomach pain
  • Watery and bloody diarrhea
  • Changes in heartbeat
  • Lightheadedness
  • Dizziness
  • Seizures
  • Blood in urine
  • Increased or decreased urination
  • Muscle cramps
  • Muscle spasms
  • Tremors
  • Skin rash on the face or cheeks

If you experience any severe or concerning side effects while taking pantoprazole, contact your healthcare provider right away.

What should I tell my healthcare provider before using pantoprazole?

Tell your healthcare provider about any existing medical conditions, allergies, or other medications you are taking before starting treatment with pantoprazole. This includes prescription drugs, over-the-counter medications, and dietary supplements, as they may interact with pantoprazole.

Tell your provider if you are taking these medications or supplements:

  • HIV medications
  • Chemotherapy medications
  • Clopidogrel
  • Methotrexate
  • Ketoconazole
  • Posaconazole
  • Cefuroxime
  • St. John’s-Wort

You should also mention medical conditions such as:

  • Liver disease
  • Osteoporosis or low bone mineral density
  • Low potassium, calcium, or magnesium levels
  • Lupus
  • Vitamin B12 deficiency

If you are pregnant, planning to become pregnant, or breastfeeding, consult your healthcare provider before using pantoprazole to assess potential risks and benefits.

Are there any other special instructions I should follow?

Take pantoprazole exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment.

Pantoprazole can impair your ability to absorb certain vitamins and minerals. Be aware of any symptoms of deficiencies, such as muscle cramps or irregular heartbeat, which could suggest low magnesium levels.

Take pantoprazole at the same time every day, usually in the morning before eating. Pantoprazole should be taken on an empty stomach about 30 to 60 minutes before meals.

What should I do in case of an overdose?

In case of a pantoprazole overdose, seek medical attention immediately. Symptoms of overdose may include confusion, dizziness, blurred vision, dry mouth, flushing, headache, nausea, and sweating. If you suspect an overdose, contact the poison control helpline at 1-800-222-1222 or call emergency services.

Proper Use & Dosage Information for Pantoprazole


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What is the typical starting dose for pantoprazole?

Pantoprazole is available in the following forms:

  • Delayed-release oral tables
  • Oral suspension granules (powder)

The typical starting dose of pantoprazole varies depending on the condition being treated, the severity of symptoms, and individual patient factors. It is crucial to follow your healthcare provider's instructions regarding dosage and administration.

For short-term treatment of erosive esophagitis:

  • Adults: 40 mg daily for 8 weeks
  • Children: 20-40 mg daily for 8 weeks

For the maintenance of erosive esophagitis healing:

  • Adults: 40 mg once daily

For Zollinger-Ellison syndrome:

  • Adults: 40 mg twice a day

The dosage may be adjusted based on the response and tolerance to the medication. Your healthcare provider will determine the most appropriate dose based on your medical history, current medications, and response to the medication.

Pantoprazole should be taken exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment without consulting your provider.

If you have any questions about your dosage or need adjustments, contact your healthcare provider for guidance. If you want to talk to a provider right away, consider scheduling an online doctor appointment through a telehealth platform like Sesame.

What should I do if I miss a dose of pantoprazole?

If you miss a dose of pantoprazole, take it as soon as you remember unless it is close to the time for your next scheduled dose. In that case, skip the missed dose and continue with your regular dosing schedule. Do not double the dose to make up for a missed one.

Take pantoprazole around the same time every day to ensure effectiveness.

What should I do if I'm feeling better while taking pantoprazole?

Continue taking pantoprazole as prescribed by your healthcare provider, even if you start feeling better. Do not stop the medication abruptly without consulting your provider, as it may lead to a return of symptoms.

If you have any concerns or questions about your medication, discuss them with your healthcare provider for medical advice and recommendations.

How should I store pantoprazole?

Store pantoprazole according to the instructions provided by your healthcare provider or pharmacist. Keep it at room temperature, away from light and moisture. Ensure the container is tightly closed and out of reach of children.

Do not use expired medication or medications that appear damaged or discolored. If you have any questions about storage, consult your healthcare provider or pharmacist for guidance.

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