When used to treat H. pylori infection amoxicillin is typically combined with a proton-pump inhibitor drug and other drug combinations are also effective .
When used to treat H. pylori infection it is typically combined with a proton-pump inhibitor drug ( e.g. , lansoprazole ) and a macrolide antibiotic ( e.g. , clarithromycin ) ; other drug combinations are also effective .
Amoxicillin