Three proton pump inhibitors have been launched: omeprazole, lansoprazole and pantoprazole in 1988,1991 and 1994, respectively.

• 已经上市的质子泵抑制剂有奥美拉唑(1988年上市)、兰索拉唑(1991年上市)、泮妥拉唑(1994年上市)。