Raciper 20 Tablet reduces the amount of acid your stomach makes. It treats gastroesophageal reflux disease (GERD), stomach ulcers and Zollinger-Ellison syndrome (overproduction of acid due to pancreatic tumour). It helps in reducing the stomach acid and relieves symptoms of food pipe lining inflammation (esophagitis), and gastroesophageal reflux disease (GERD), or heartburn. In some cases, it may cause common side effects like headache, diarrhoea, nausea, abdominal pain, and vomiting. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions