Helicobacter pylori (H. pylori), a gram-negative pathogen that has infected half of the world’s population is a Group I carcinogen according to the WHO. H. pylori resides in the gastric mucosa causing gastritis, ulcers, gastric cancers and malignant lymphoma of the stomach. It can be eradicated in most infected people using a combination of three drugs; antibiotics clarithromycin, amoxicillin, and gastric acid suppressants. Amoxicillin exerts antibacterial activity by inhibiting the biosynthesis of peptidoglycan present in the cell wall of bacteria, and clarithromycin exerts antibacterial activity by inhibiting protein synthesis.
