Ranitidine has been effective in preventing ulcer recurrence when given in low doses for prolonged periods of time... Pantoprazole inhibits the actions of the proton pumps, thereby reducing acid production. Ranitidine is useful in promoting healing of stomach and duodenal generic zantac ulcers, and in reducing ulcer pain. Proton pumps are those parts of the cells in the stomach lining that are responsible for the acid production. By decreasing the amount of stomach acid, this medication can prevent and relieve a number of symptoms and conditions, including ulcers, generic protonix acid reflux, difficulty swallowing and acid damage to the stomach and esophagus. Pantoprazole belongs to a group of drugs called Proton Pump Inhibitors. Because of its acid reducing action, Pantoprazole also serves as a preventative measure against more severe conditions zantac (brand) caused by stomach acid, such as ulcers and stomach cancer.