Pantoloc (Pantoprazole)

What is Pantoloc?

Pantoloc is a prescription-only medication widely used to treat gastrointestinal conditions caused by excessive stomach acid, including gastroesophageal reflux disease (GERD) and peptic ulcer disease.

It belongs to a class of drugs known as proton pump inhibitors (PPIs). As a substituted benzimidazole derivative, pantoprazole suppresses the final step of gastric acid secretion by binding directly to the proton pumps in the stomach lining.

Generic Names:

• Pantoprazole: The generic active ingredient universally recognized in medical practice to suppress stomach acid.

Global Brand Names:

Pantoprazole is distributed globally under several well-known brand names.

• Pantoloc (潘妥洛克): The original brand manufactured by Takeda, available in Hong Kong in 20mg and 40mg enteric-coated tablets and IV injections.
• Controloc: An alternative brand name for pantoprazole distributed in various international markets.
• Apo-Pantoprazole: A common generic alternative 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 Pantoloc used for?

Pantoloc is used to relieve:

• Heartburn and acid regurgitation associated with gastroesophageal reflux disease (GERD).
• Active duodenal ulcers and benign gastric ulcers.
• Pathological hypersecretory conditions like Zollinger-Ellison Syndrome.
• Risk of ulcers in patients requiring long-term non-steroidal anti-inflammatory drugs (NSAIDs).
• Helicobacter pylori infections, when used in combination with specific antibiotics.

How do you use Pantoloc?

Availability:

• Enteric-coated tablets, intravenous injection

Dosage Information:

• Children (5 years and older): Weight-based dosing; 20 mg for 15kg to under 40kg, and 40 mg for 40kg or more.
• Adults: 20 mg to 40 mg once daily for 4 to 8 weeks, adjusted based on the specific condition.
• Elderlies: Standard adult dosing applies, with dosage reductions for severe liver cirrhosis.

Suitability:

• Adults: Yes, for managing acid-related conditions.
• Children: Yes, for those aged 5 and above requiring acid suppression.
• Patients with severe liver cirrhosis: Yes, with careful dosage adjustments.

Who cannot take Pantoloc?

Allergies and unsuitability:

• Rare, but possible severe allergic reactions to substituted benzimidazoles.

Conditions where the drug should not be used:

• Known hypersensitivity to pantoprazole or other proton pump inhibitors.

Common side effects of Pantoloc include headaches, diarrhea, nausea, abdominal pain, flatulence, and dizziness. These are generally manageable and often subside as the body adjusts to the medication. Prolonged daily use of proton pump inhibitors can increase the risk of bone fractures, low magnesium levels, and Vitamin B12 deficiency.

Severe but rare adverse reactions may include acute interstitial nephritis, systemic lupus erythematosus, and serious skin reactions such as Stevens-Johnson syndrome. PPI therapy may also be associated with an increased risk of Clostridium difficile-associated diarrhea, particularly in hospitalized patients.

• Do not crush, split, or chew the tablets to prevent destruction of the enteric coating by stomach acid.
• Avoid prolonged use without medical supervision to reduce the risk of bone fractures and vitamin B12 deficiency.
• Check with a doctor if taking antiretroviral medications like atazanavir or nelfinavir, as pantoprazole reduces their effectiveness.
• Monitor blood clotting times if taking warfarin concurrently.
• Avoid high-dose methotrexate use with this medication to prevent methotrexate toxicity.
• Check with a doctor if symptoms persist, to evaluate for the presence of gastric malignancy.

Storage information:

• Store at a controlled room temperature between 15°C and 30°C.
• Keep the container tightly closed to protect the tablets from moisture.
• Keep in a safe place out of reach of children.

Handling instructions:

• Swallow the enteric-coated tablets whole with a glass of water.
• Take the medication 30 to 60 minutes before a meal, preferably breakfast, for optimal effect.

Where is Pantoloc available in Hong Kong?

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

You can obtain this medication at registered dispensaries carrying the "Rx" logo, as well as pharmacy counters in general chain drug stores like Mannings and Watsons, provided you have the required prescription.