Lansoprazole Generics Uk (Lansoprazole)

Lansoprazole is a proton pump inhibitor used to manage acid‑related gastrointestinal conditions.

• Gastroesophageal reflux disease (GERD): reduces gastric acid exposure, relieving heartburn and regurgitation.
• Erosive esophagitis: promotes healing of inflamed esophageal tissue by suppressing acid secretion.
• Peptic ulcer disease: facilitates ulcer healing and prevents recurrence through sustained acid suppression.
• Helicobacter pylori eradication: used as part of combination therapy to increase eradication rates by creating a less acidic environment.

• Lansoprazole selectively and irreversibly inhibits the H+/K+ ATPase enzyme (the gastric proton pump) located on the secretory surface of parietal cells. By blocking this final step of acid production, it markedly reduces basal and stimulated gastric acid secretion, leading to an increase in gastric pH and providing symptomatic relief and mucosal healing in acid‑related disorders.

Adverse reactions to lansoprazole may vary in frequency and severity.

Common Side Effects

• Headache: mild to moderate pain often occurring early in therapy.
• Diarrhoea: loose stools that may resolve with continued use.
• Abdominal pain: discomfort or cramping in the stomach area.
• Nausea: feeling of unease or urge to vomit.
• Flatulence: increased intestinal gas.
• Constipation: difficulty passing stools.

Serious or Rare Side Effects

• Anaphylaxis: severe allergic reaction with rash, swelling, and breathing difficulty.
• Clostridioides difficile infection: severe colitis presenting with watery diarrhoea.
• Hypomagnesemia: low magnesium levels causing muscle cramps or arrhythmia.
• Elevated liver enzymes: signs of hepatic stress detectable in blood tests.
• Stevens‑Johnson syndrome: rare skin blistering disorder.
• Pancreatitis: inflammation of the pancreas with abdominal pain and vomiting.

Before initiating lansoprazole, consider the following safety measures.

• Renal function assessment: adjust use in patients with severe renal impairment.
• Magnesium monitoring: check serum magnesium during prolonged therapy.
• Elderly patients: use the lowest effective dose and limit duration.
• Concomitant medications: review drugs that require gastric acidity for absorption.
• Long‑term use: evaluate need regularly to avoid unnecessary exposure.
• Store at room temperature: keep in the original pack, protect from moisture.

Lansoprazole may alter the pharmacokinetics of several medicines.

Major Interactions (Avoid)

• Atazanavir: reduced antiviral absorption; avoid co‑administration.
• Ketoconazole: markedly decreased antifungal exposure; avoid together.
• Clopidogrel: diminished antiplatelet effect; consider alternative therapy.

Moderate Interactions (Monitor Closely)

• Warfarin: possible increase in INR; monitor coagulation parameters.
• Digoxin: enhanced serum levels; check digoxin concentrations.
• Methotrexate: reduced clearance; monitor for toxicity.
• Oral contraceptives: decreased efficacy; advise additional contraceptive measures.
• HIV protease inhibitors (e.g., ritonavir): altered plasma levels; adjust dosing as needed.