Lansoprazole is a proton-pump inhibitor drug that is commonly prescribed to reduce the amount of acid produced by the stomach. The drug is commonly known by its brand name, Prevacid. However, there are a number of other names that are used to refer to Lansoprazole. These include generic names such as Zoton, Ogastro, and Lansox. Other brands that contain Lansoprazole include Agopton, Bamalite, and Zopral. While the names may differ, the drug's ability to decrease acid production remains the same, making it an effective treatment for gastric acid-related disorders such as gastroesophageal reflux disease (GERD) and peptic ulcers.