Pantoloc (Pantoprazole Sodium Sesquihydrate)

Pantoloc is a proton pump inhibitor that acts on conditions related to excess gastric acidity.

• Gastro‑esophageal reflux disease (GERD): provides symptomatic relief and promotes healing of erosive esophagitis.
• Erosive gastritis and duodenal ulcer disease: supports ulcer healing by maintaining a higher gastric pH.
• Zollinger‑Ellison syndrome: controls gastric acid hypersecretion associated with this rare endocrine disorder.

• Pantoprazole selectively inhibits the H⁺/K⁺‑ATPase enzyme (the gastric proton pump) located on the secretory surface of parietal cells. By binding covalently to the pump’s cysteine residues, it blocks the final step of acid secretion, leading to a sustained increase in gastric pH and reduced acidity in the stomach.

Pantoloc may cause adverse reactions that vary in frequency and severity.

Common Side Effects

• Headache: mild to moderate intensity.
• Diarrhea: usually self‑limiting.
• Nausea or abdominal discomfort.
• Flatulence or bloating.
• Constipation.
• Dry mouth.

Serious or Rare Side Effects

• Acute interstitial nephritis: inflammation of kidney tissue.
• Severe hypersensitivity reactions: including rash, angioedema or anaphylaxis.
• Clostridioides difficile‑associated colitis: severe diarrhea with abdominal pain.
• Osteoporotic fractures: increased risk with long‑term use.
• Low magnesium levels (hypomagnesemia): may cause muscle cramps or cardiac arrhythmia.

When prescribing Pantoloc, clinicians should consider several safety aspects.

• Assess renal function: dose adjustment may be required in severe impairment.
• Review concomitant medications: potential for interaction with drugs that need gastric acidity.
• Monitor for long‑term therapy: consider bone health and magnesium status.
• Use caution in pregnancy: only if the potential benefit outweighs risk.
• Store below 25°C: keep in the original container, protect from moisture and light.

Pantoloc can affect the absorption or metabolism of several co‑administered drugs.

Major Interactions (Avoid)

• Atazanavir or other protease inhibitors: reduced antiviral efficacy.
• Clopidogrel: decreased antiplatelet activation.

Moderate Interactions (Monitor Closely)

• Warfarin: possible alteration of INR values.
• Methotrexate: increased systemic exposure.
• Digoxin: modest increase in serum concentrations.
• Iron salts or ketoconazole: reduced absorption due to higher gastric pH.