GERD Home > Generic Zantac

Like the brand-name medicine, generic Zantac is available as a prescription drug and as an over-the-counter medication. When purchased with a prescription, the generic version is available as 150 mg tablets, 300 mg tablets, and 15 mg per mL syrup. The over-the-counter generic version is available in 75 mg and 150 mg strengths.

Can I Buy Generic Zantac?

Zantac® (ranitidine hydrochloride) is a medication that has been licensed to treat several conditions of the esophagus, stomach, and intestines. It is part of a class of drugs known as H2 blockers. Zantac is available both over-the-counter (OTC) and by prescription.
Prescription Zantac was originally manufactured by GlaxoSmithKline. Over-the-counter Zantac was first made by Pfizer Consumer Healthcare. Both versions are off-patent and currently available as generics.

Available Strengths

For prescription generic Zantac, the following strengths are available:
  • Ranitidine 150 mg tablets
  • Ranitidine 300 mg tablets
  • Ranitidine 15 mg per mL syrup.


Generic versions of Zantac EFFERdose® tablets are not available.
For over-the-counter generic Zantac, the following strengths are available:
  • Ranitidine 75 mg tablets
  • Ranitidine 150 mg tablets.

Who Makes Generic Zantac?

There are many makers of generic Zantac. Ask your pharmacist about the different drug companies that manufacture Zantac generics.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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