AstraZeneca medicines used to treat gastrointestinal illnesses in the UK listed below.

Product range

More information about our products is available by clicking on the names below.

Brand nameGeneric name
Entocort budesonide
Losec omeprazole
Nexium esomeprazole


What is a proton pump inhibitor?

PPIs work by inhibiting a process called the hydrogen-potassium adenosine triphosphatase enzyme system (the ‘proton pump’), which produces acid in the stomach.