Description and Brand Names

Drug information provided by: Merative, Micromedex®

US Brand Name

  1. Axid
  2. Axid AR
  3. Axid Pulvules
  4. Heartburn Relief
  5. Pepcid
  6. Pepcid AC
  7. Tagamet
  8. Tagamet HB
  9. Zantac
  10. Zantac 150
  11. Zantac 150 Efferdose
  12. Zantac 25

Canadian Brand Name

  1. Alti-Ranitidine
  2. Apo-Cimetidine
  3. Apo-Famotidine
  4. Famotidine


Histamine H2-receptor antagonists, also known as H2-blockers, are used to treat duodenal ulcers and prevent their return. They are also used to treat gastric ulcers and for some conditions, such as Zollinger-Ellison disease, in which the stomach produces too much acid. In over-the-counter (OTC) strengths, these medicines are used to relieve and/or prevent heartburn, acid indigestion, and sour stomach. H2-blockers may also be used for other conditions as determined by your doctor.

H2-blockers work by decreasing the amount of acid produced by the stomach.

H2-blockers are available both over-the-counter (OTC) and with your doctor's prescription.

Limited testing has found unacceptable levels of a probable human carcinogen, N-nitrosodimethylamine (NDMA), in some ranitidine medicines.

This product is available in the following dosage forms:

  • Tablet
  • Solution
  • Powder for Suspension
  • Capsule