Losec HP7 OACAstra Zeneca. Rx quality 7 Days Therapy 20/500/500mg . LOSEC Hp7 OAC is a combination pack which contains three different medicines. When taken together in the right doses, at the right time, they will kill a bacterium in your stomach called Helicobacter pylori and let your peptic ulcer heal.Omeprazole is a type of medicine called a proton pump inhibitor. It reduces the amount of acid produced by the stomach, but does not stop food from being digested in the normal way.Amoxycillin and Clarithromycin are both antibiotics which kill Helicobacter pylor .
