GERD Home > Zantac 300 mg Tablets

Zantac® (ranitidine hydrochloride) is a medication licensed to treat various conditions within the esophagus, stomach, and intestines. It is available as a prescription drug and as an over-the-counter product.
Prescription Zantac comes in the following forms and strengths:
  • Zantac 150 mg tablets
  • Zantac 300 mg tablets
  • Zantac 25 mg EFFERdose® tablets
  • Zantac 150 mg EFFERdose tablets
  • Zantac syrup 15 mg per mL (75 mg per teaspoonful).
Non-prescription Zantac comes in two strengths:
  • Zantac 75 Acid Reducer
  • Maximum Strength Zantac 150 Acid Reducer.
For treating a duodenal ulcer, healthcare providers often recommend either Zantac 150 mg tablets (one tablet, twice daily) or Zantac 300 mg tablets (one tablet, once daily). The recommended dosage for the treatment of stomach ulcers is 150 mg twice a day.
The usual dose for treating erosive esophagitis is Zantac 150 mg four times a day. Once healed, the dose for preventing the ulcer from returning is typically 150 mg twice daily.
For the treatment of GERD or pathological hypersecretory conditions, the usual recommended dosage is Zantac 150 mg twice daily.
(Click Zantac Dosage for more detailed dosing guidelines and to find out how dosing works for young children and babies.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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