Nexium (Esomeprazole)

Esomeprazole, the active ingredient in Nexium, is a proton pump inhibitor presented as a tablet for oral use. It reduces gastric acid production and is prescribed for conditions such as gastro‑oesophageal reflux disease, erosive esophagitis, peptic ulcer disease and as part of Helicobacter pylori eradication regimens.

GNH USA supplies Nexium as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Nexium is a proton pump inhibitor indicated for several acid‑related gastrointestinal conditions.

- Gastro‑oesophageal reflux disease (GERD): provides symptomatic relief and promotes healing of the oesophageal lining. - Erosive esophagitis: reduces acid exposure to allow mucosal recovery. - Peptic ulcer disease: supports ulcer healing and prevents recurrence. - Helicobacter pylori eradication therapy: used in combination regimens to improve bacterial eradication rates.

Adverse reactions may occur with any medication. The following lists have been compiled from clinical experience and pharmacovigilance data.

Common Side Effects: - Headache: mild to moderate intensity. - Diarrhoea: usually transient. - Nausea: may occur after dosing. - Abdominal pain: occasional discomfort. - Flatulence: increased intestinal gas. - Constipation: reduced bowel movements.

Serious or Rare Side Effects: - Severe allergic reaction (anaphylaxis): requires immediate medical attention. - Clostridioides difficile infection: presents with severe diarrhoea. - Hypomagnesemia: low magnesium levels with prolonged use. - Liver enzyme abnormalities: elevated transaminases. - Stevens‑Johnson syndrome/toxic epidermal necrolysis: rare skin reactions. - Acute pancreatitis: sudden abdominal pain and elevated enzymes.

Before initiating therapy, consider the following safety measures.

- Assess renal function: adjust use in patients with severe impairment. - Monitor magnesium levels: long‑term therapy may lead to deficiency. - Avoid abrupt discontinuation: risk of rebound acid hypersecretion. - Use with caution in elderly patients: higher incidence of adverse events. - Pregnancy and lactation: consult a healthcare professional before use. - Store at room temperature: keep in the original pack, protect from moisture.

Esomeprazole may affect the pharmacokinetics of several drugs. Interactions are grouped by clinical significance.

Major Interactions (Avoid): - Ketoconazole and itraconazole: reduced antifungal absorption. - Clopidogrel: decreased antiplatelet activity. - Atazanavir: markedly lowered antiviral plasma concentrations.

Moderate Interactions (Monitor Closely): - Warfarin: potential increase in INR. - Digoxin: possible rise in serum levels. - Methotrexate: enhanced toxicity risk.