Zantac 75 prevents and relieves heartburn associated with Acid Indigestion and Sour Stomach. Prevents heartburn associated with acid indigestion and sour stomach brought on by certain foods and beverages. To prevent symptoms take 1 tablet before eating. Contains Ranitidine 75 mg. Individually packaged doses make it easy and convenenient to take with you anywhere you go. Put in purses, backpacks, carryon luggage and glove boxes. Keep heartburn and acid indigestion away with these easy to carry packets. 25 packets of 1 tablet per box.