Aciphex or generic Rabeprazole drugs are used for treating the conditions caused by acid. Aciphex helps in lessening the quantity of acid that is formed in the stomach. Rabeprazole is useful medicine for the treatment of gastroesophageal reflux disease (GERD) and other problems which have unnecessary stomach acids like Zollinger-Ellison syndrome. Aciphex is also helpful for healing the erosive esophagitis (damage caused to the esophagus by acids in the stomach). Aciphex can be used with an antibiotic to evade gastric ulcer (which is caused by infection with helicobacter pylori).