Product image of Omeprazole Cristers (Omeprazole) supplied by GNH India

Omeprazole Cristers

Active Ingredient:
Omeprazole
Origin:
EU

Omeprazole Cristers (Omeprazole)

Omeprazole, the active ingredient in Omeprazole Cristers, is a proton pump inhibitor presented as a strength/form for oral use. It reduces stomach acid production and is used to treat conditions such as gastro‑oesophageal reflux disease, peptic ulcer disease and Zollinger‑Ellison syndrome in adults and children. GNH India supplies Omeprazole Cristers as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

GNH India supplies Omeprazole Cristers as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Cristers

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Indications & Clinical Uses

Omeprazole acts on the gastric acid secretion pathway and is indicated for several acid‑related disorders.

  • Gastro‑oesophageal reflux disease (GERD): provides symptomatic relief and promotes healing of the oesophageal lining.
  • Peptic ulcer disease: supports ulcer healing and reduces risk of recurrence.
  • Zollinger‑Ellison syndrome: controls excessive gastric acid production associated with gastrin‑secreting tumours.
  • Erosive esophagitis: aids mucosal healing in acid‑induced injury.
  • Helicobacter pylori eradication regimens (as adjunct): enhances effectiveness of antibiotic‑based therapy.

How It Works

  • Omeprazole 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 secretion, it markedly reduces both basal and stimulated gastric acidity, allowing the gastrointestinal mucosa to heal and providing symptom relief.

Side Effects

Adverse reactions to omeprazole are generally mild to moderate and vary with duration of therapy.

Common Side Effects

  • Headache: mild, transient headache reported in clinical use.
  • Diarrhoea: loose stools occurring in a minority of patients.
  • Nausea: occasional feeling of queasiness.
  • Abdominal pain: mild discomfort in the stomach region.
  • Flatulence: increased intestinal gas.
  • Constipation: reduced bowel movements.

Serious or Rare Side Effects

  • Clostridioides difficile infection: severe colitis linked to altered gut flora.
  • Acute interstitial nephritis: sudden kidney inflammation.
  • Severe hypersensitivity reactions: including rash, angioedema or anaphylaxis.
  • Osteoporotic fractures: increased risk with long‑term use.
  • Vitamin B12 deficiency: malabsorption with prolonged therapy.
  • Liver enzyme elevation: abnormal hepatic function tests.

Precautions & Warnings

When prescribing omeprazole, clinicians should consider several safety aspects.

  • Assess renal and hepatic function: adjust use in severe impairment.
  • Review concomitant medications: potential for drug‑drug interactions.
  • Evaluate need for long‑term therapy: weigh benefits against fracture risk.
  • Monitor for signs of infection: especially Clostridioides difficile.
  • Counsel on appropriate use: avoid unnecessary prolonged dosing.
  • Store at below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Omeprazole can affect the pharmacokinetics of several co‑administered medicines.

Major Interactions (Avoid)

  • Clopidogrel: reduced antiplatelet effect, may increase cardiovascular risk.
  • Atazanavir: decreased absorption, loss of antiviral efficacy.
  • Methotrexate (high dose): increased serum levels, risk of toxicity.

Moderate Interactions (Monitor Closely)

  • Warfarin: potential alteration of INR, requires monitoring.
  • Phenytoin: may reduce plasma concentrations, adjust dose if needed.
  • Digoxin: possible increase in serum concentration, watch for toxicity.

Frequently Asked Questions

Omeprazole Cristers contains the proton pump inhibitor omeprazole and is used to treat acid‑related gastrointestinal conditions such as gastro‑oesophageal reflux disease, peptic ulcer disease, erosive esophagitis and Zollinger‑Ellishon syndrome. It helps reduce stomach acid, relieving symptoms and allowing damaged tissue to heal.

Omeprazole works by irreversibly blocking the H+/K+‑ATPase enzyme, also known as the gastric proton pump, on the surface of stomach parietal cells. This inhibition stops the final step of acid secretion, markedly lowering gastric acidity and creating an environment that promotes healing of the gastrointestinal mucosa.

The appropriate dose of Omeprazole Cristers is determined by the prescribing clinician based on the specific indication, patient age, renal and hepatic function, and treatment duration. Healthcare professionals set the regimen according to current clinical guidelines and individual patient needs.

Omeprazole is classified as pregnancy category B in many regions, indicating no evidence of risk in animal studies but limited human data. It is generally considered acceptable when clearly needed, but clinicians should evaluate risks versus benefits. Use while breastfeeding is usually permissible, though monitoring the infant for rare effects is advised.

To order Omeprazole Cristers, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Omeprazole belongs to the proton pump inhibitor class, which provides more potent and longer‑lasting acid suppression than H2‑receptor antagonists such as ranitidine. Compared with newer PPIs, omeprazole has a well‑established efficacy and safety profile, making it a common first‑line option for acid‑related disorders.

Omeprazole Cristers should be stored at temperatures below 25 °C, in the original packaging to protect from moisture and direct sunlight. Keep the product in a dry place and avoid exposure to high humidity or extreme temperatures to maintain potency.

Omeprazole Cristers is taken orally, usually as a whole tablet or capsule with water. It is commonly recommended to be taken before a meal, often in the morning, but patients should follow the prescribing clinician’s instructions regarding timing and whether it should be swallowed whole or opened.

Serious risks, though uncommon, include Clostridioides difficile‑associated colitis, acute interstitial nephritis, severe hypersensitivity reactions such as anaphylaxis, and increased risk of osteoporotic fractures with long‑term use. Patients should report persistent abdominal pain, severe diarrhea, rash, or signs of infection promptly.

Omeprazole Cristers is contraindicated in individuals with known hypersensitivity to omeprazole or any component of the formulation. Caution is also advised for patients with severe liver impairment, and it should be avoided in those taking medications that have major interactions unless supervised by a healthcare professional.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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