Pantoprazolo Kalceks (Pantoprazole)

Pantoprazolo Kalceks, a proton pump inhibitor, is indicated for conditions involving excess gastric acid production.

• Gastro‑oesophageal reflux disease (GERD): alleviates heartburn and regurgitation by decreasing acid exposure to the oesophagus.
• Erosive oesophagitis: promotes healing of acid‑induced oesophageal lesions.
• Zollinger‑Ellison syndrome: controls hyper‑secretion of gastric acid in this rare endocrine disorder.
• NSAID‑associated gastric ulcer prevention: reduces risk of ulcer formation in patients on non‑steroidal anti‑inflammatory drugs.
• Maintenance therapy after healing of erosive oesophagitis: sustains remission by continued acid suppression.

• Pantoprazole selectively and irreversibly binds to the H+/K+‑ATPase enzyme (the gastric proton pump) on the parietal cell surface, inhibiting the final step of acid secretion. By blocking this pump, it raises gastric pH, thereby reducing both basal and stimulated gastric acid output.

Pantoprazolo Kalceks may cause a range of adverse reactions. Most are mild and reversible, but rare serious events have been reported.

Common Side Effects

• Headache: mild to moderate pain often resolving without treatment.
• Diarrhoea: loose stools that may be self‑limiting.
• Nausea: sensation of unease or urge to vomit.
• Abdominal pain: discomfort in the stomach region.
• Flatulence: excess intestinal gas.
• Constipation: difficulty passing stools.

Serious or Rare Side Effects

• Severe allergic reactions (anaphylaxis): rash, swelling, difficulty breathing.
• Clostridioides difficile infection: severe diarrhoea with abdominal cramping.
• Hypomagnesemia: low magnesium levels causing muscle weakness or arrhythmia.
• Elevated liver enzymes: potential liver injury.
• Stevens‑Johnson syndrome/toxic epidermal necrolysis: severe skin reactions.
• Interstitial nephritis: inflammation of kidney tissue.

Before initiating therapy, consider the following safety measures.

• Assess renal function: dose adjustment may be required in severe impairment.
• Monitor magnesium levels: prolonged use can lead to hypomagnesemia.
• Evaluate liver disease: use with caution in patients with hepatic impairment.
• Check for known hypersensitivity: discontinue if allergic reaction occurs.
• Review concomitant medications: potential for drug‑drug interactions.
• Store at room temperature: keep in the original pack, protect from moisture and direct sunlight.

Pantoprazolo Kalceks can affect the pharmacokinetics of several medicines. Review patient medication lists carefully.

Major Interactions (Avoid)

• Atazanavir: reduced absorption leading to therapeutic failure.
• Nelfinavir: decreased plasma concentrations.
• Rilpivirine: diminished efficacy due to increased gastric pH.
• Clopidogrel: reduced activation and antiplatelet effect.

Moderate Interactions (Monitor Closely)

• Warfarin: possible increase in INR, monitor coagulation.
• Digoxin: higher serum levels may occur.
• Methotrexate (high dose): increased toxicity risk.
• HIV protease inhibitors (e.g., darunavir): altered exposure.
• Fluconazole: may increase pantoprazole levels.