It was renamed Pepsi-Cola in 1898, "Pepsi" because it was advertised to relieve dyspepsia[2][2][3] (today more commonly known as indigestion or an upset stomach) and "Cola" referring to the cola flavor.[3] Some have also suggested that "Pepsi" may have been a reference to the drink aiding digestion like the digestive enzyme pepsin,[4][3] but pepsin itself was never used as an ingredient to Pepsi-Cola.[1]