Uses of ranitidine?

Ranitidine is (or historically was) a histamine-2 (H2) receptor blocker that reduces stomach acid. It was used for several acid-related conditions. However, many regulators have recalled or restricted it in recent years because of concerns about a potential carcinogen (NDMA), so availability and indications vary by country today.

Common historical uses of ranitidine
- Treating and preventing peptic ulcers (gastric and duodenal ulcers)
- Treating gastroesophageal reflux disease (GERD), including erosive esophagitis
- Symptomatic relief of dyspepsia and heartburn
- Maintenance therapy to prevent ulcer recurrence in certain patients
- Treating conditions with excess acid production, such as Zollinger-Ellison syndrome
- Stress-related mucosal disease prophylaxis in hospitalized or critically ill patients (in some settings)
- Some markets offered ranitidine in combination products (e.g., ranitidine bismuth citrate) for ulcers

Current status and alternatives
- Ranitidine has been largely withdrawn or restricted in many regions due to NDMA safety concerns. Availability varies by country.
- If ranitidine is not available or recommended where you are, alternatives include:
- Other H2 blockers: famotidine, nizatidine, or cimetidine (note: these also have safety considerations and varying availability)
- Proton pump inhibitors (PPIs): omeprazole, esomeprazole, pantoprazole, etc., which are commonly used for similar conditions
- Lifestyle measures and dietary changes for mild symptoms

If you’re looking for current, location-specific guidance (indications, availability, and alternatives) please tell me your country or region, and I can tailor the information to your area. Also, if you have a prescription or health condition in mind, I can help clarify the appropriate options.