Pantoprazol Pentafarma Genéricos (Pantoprazole)

Pantoprazole is a proton pump inhibitor that acts on the gastric acid secretion pathway, providing relief in several acid‑related disorders.

• Gastro‑oesophageal reflux disease (GERD): Improves heartburn symptoms and promotes healing of the oesophageal lining.
• Erosive oesophagitis: Facilitates mucosal healing and reduces further erosion.
• Peptic ulcer disease: Supports ulcer healing and helps prevent recurrence.
• Zollinger‑Ellison syndrome: Controls excessive gastric acid secretion associated with the condition.

• Pantoprazole selectively inhibits the H+/K+‑ATPase enzyme (the gastric proton pump) located on the secretory surface of gastric parietal cells. By binding covalently to this pump, it blocks the final step of acid production, leading to a sustained reduction in gastric acidity and providing an environment conducive to mucosal healing.

Pantoprazole is generally well tolerated, but adverse reactions can occur.

Common Side Effects

• Headache: mild to moderate intensity.
• Diarrhea: usually self‑limiting.
• Nausea: occasional and transient.
• Abdominal pain: mild discomfort.
• Flatulence: increased intestinal gas.
• Constipation: occasional bowel habit change.

Serious or Rare Side Effects

• Severe allergic reaction (anaphylaxis): rash, swelling, breathing difficulty.
• Clostridioides difficile infection: persistent watery diarrhea.
• Low magnesium levels (hypomagnesemia): muscle cramps, irregular heartbeat.
• Bone fractures: increased risk with long‑term use.
• Liver enzyme elevation: signs of hepatic stress.
• Acute interstitial nephritis: kidney inflammation presenting with fever and rash.

Before initiating therapy, consider the following safety measures:

• Assess renal function: dose adjustment may be required in severe impairment.
• Review concomitant medications: potential for drug‑drug interactions.
• Monitor for infection: prolonged acid suppression may increase risk of gastrointestinal infections.
• Evaluate bone health: long‑term use may affect calcium absorption.
• Pregnancy and lactation: use only if clearly needed after risk‑benefit assessment.
• Store at below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Pantoprazole may interact with several medicines, altering their effectiveness or safety profile.

Major Interactions (Avoid)

• Antifungal agents (ketoconazole, itraconazole): reduced absorption due to increased gastric pH.
• HIV protease inhibitors (atazanavir, nelfinavir): decreased plasma concentrations.
• Clopidogrel: diminished antiplatelet activity.

Moderate Interactions (Monitor Closely)

• Warfarin: potential increase in INR; monitor coagulation parameters.
• Methotrexate: reduced renal clearance may raise toxicity risk.
• Digoxin: possible increase in serum levels; check therapeutic range.