Pantoprazole

What is Pantoprazole?

Pantoprazole is a prescription-only medication widely used to treat acid-related gastrointestinal conditions such as gastroesophageal reflux disease (GERD) and peptic ulcers. It provides long-lasting relief from symptoms like heartburn and acid regurgitation by effectively reducing the amount of acid produced in the stomach.

It belongs to a class of drugs known as proton pump inhibitors (PPIs). Synthesized as a substituted benzimidazole, it works by irreversibly binding to the proton pump enzyme system in the stomach lining, directly blocking the final step of acid secretion.

Generic Names:

• Pantoprazole sodium: The primary active pharmaceutical ingredient globally recognized for acid suppression.

Global Brand Names:

Pantoprazole is distributed under several well-known brand names globally and in Hong Kong.

• Pantoloc (泮托洛克): The original brand by Takeda, widely available in Hong Kong hospitals and private clinics.
• Controloc (康多龍): A registered brand commonly used for acid-related disorders in Hong Kong.
• Apo-Pantoprazole: A common generic version widely available in Hong Kong pharmacies.

These names all refer to the same medication. It's important to note that while the active ingredient is the same, different countries may have different regulations and available medication formulations.

What is Pantoprazole used for?

Pantoprazole is used to relieve:

• Heartburn and acid regurgitation associated with GERD.
• Erosive esophagitis.
• Gastric and duodenal ulcers.
• Pathological hypersecretory conditions like Zollinger-Ellison Syndrome.
• H. pylori infections (in combination with specific antibiotics).

How do you use Pantoprazole?

Availability:

• Oral tablets

Dosage Information:

• Adults: 40 mg once daily for 4 to 8 weeks for GERD and esophagitis.
• Infants/Children: 20 mg once daily for children weighing 15 kg to under 40 kg; 40 mg once daily for children 40 kg and over.
• Elderlies: Typically follows standard adult dosing; no routine adjustment required for age.

Suitability:

• Adults: Yes.
• Elderlies: Yes.
• Children: Yes, for those aged 5 and older.
• Infants: No, not typically indicated for children under 5 years old.

Who cannot take Pantoprazole?

Allergies and unsuitability:

• Rare, but severe allergic reactions such as anaphylaxis are possible.

Conditions where the drug should not be used:

• Known allergy to pantoprazole or other substituted benzimidazoles.
• Concomitant use of rilpivirine-containing products.

Common side effects of pantoprazole include headache, diarrhea, nausea, abdominal pain, flatulence, dizziness, and joint pain. These symptoms are generally mild. However, prolonged use or over-suppression of stomach acid can lead to low magnesium levels, vitamin B12 deficiency, and an increased risk of bone fractures.

Severe but rare adverse reactions require immediate attention. These include severe allergic responses like anaphylaxis, Stevens-Johnson syndrome, toxic epidermal necrolysis, acute interstitial nephritis, and a heightened risk of Clostridioides difficile-associated diarrhea (CDAD).

• Swallow tablets whole; do not crush or chew to ensure proper release of the medication.
• Do not exceed the prescribed duration of use to minimize the risk of bone fractures and vitamin B12 deficiency.
• Check with a doctor if you experience persistent or severe diarrhea, as there is a risk of Clostridioides difficile infection.
• Avoid co-administration with antiretrovirals like atazanavir and nelfinavir to prevent a significant decrease in their concentration.
• Check with a doctor if taking blood thinners like warfarin, as pantoprazole may increase prothrombin time.
• Check with a doctor if undergoing high-dose methotrexate therapy, as the combination may lead to elevated methotrexate levels and toxicity.

Storage information:

• Keep in a cool, dry place below 25°C to 30°C.
• Protect from light and moisture.
• Keep out of reach of children.

Handling instructions:

• Take the medication 30 to 60 minutes before a meal, typically breakfast.
• Swallow the tablet whole with a glass of water.

Where is Pantoprazole available in Hong Kong?

In Hong Kong, Pantoprazole is classified as a Prescription Only Medicine. This means you must present a valid doctor's prescription to purchase it legally at a registered pharmacy.

It can be obtained at registered pharmacies and dispensaries displaying the "Rx" logo, as well as through hospital and private clinic pharmacies under the direct supervision of a registered pharmacist or doctor.