Ranitidine
Ranitidine is an H2-receptor antagonist. It acts on histamine H2 receptors in the stomach. This action reduces the production and secretion of stomach acid. Ranitidine is used to treat peptic ulcer disease and gastro-oesophageal reflux disease. It is supplied as a tablet in 150 mg and 300 mg strengths.
Medicine containing Ranitidine
Key points
- Ranitidine is classed as an H2-receptor antagonist.
- Its tablet strengths are 150 mg and 300 mg.
- Hypersensitivity to ranitidine is a contraindication.
What ranitidine is used for
Ranitidine is used to treat peptic ulcer disease and gastro-oesophageal reflux disease. It is an H2-receptor antagonist, and its action reduces stomach acid. Both conditions are treated with ranitidine in tablet form.
How ranitidine works
Ranitidine acts as an antagonist at histamine H2 receptors in the stomach. Blocking these receptors reduces the production and secretion of stomach acid. The therapeutic class and pharmacological class of ranitidine are both H2-receptor antagonist.
Ranitidine tablets and brands
Ranitidine comes as a tablet. Zantac ranitidine tablets are supplied in 150 mg and 300 mg strengths. The active ingredient is ranitidine. Pharmacy partners in India ship orders to Malaysia in discreet packaging.
Before you take ranitidine
Do not take ranitidine if you have a hypersensitivity to ranitidine. Tell your doctor about kidney problems, which may need a lower dose. Ranitidine interacts with ketoconazole and warfarin. Tell your doctor or pharmacist if you take either medicine. In pregnancy, use only if essential. Ranitidine is excreted in breast milk; medical advice is required before breastfeeding.
Side effects
Headache and constipation are minor side effects. Dizziness and fatigue are moderate side effects. Hepatitis and anaphylaxis are serious side effects. Both hepatitis and anaphylaxis require immediate medical attention. Seek urgent medical help if either serious side effect is suspected.
Further reading
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