Bismuth subcitrate potassium (CAS 880149-29-1) is a bismuth-containing antibiotic agent targeting Helicobacter pylori It is designed to inhibit bacterial viability thereby impairing bacterial colonization within the gastric mucosa Bismuth subcitrate potassium exerts its biological activity primarily through disruption of bacterial cell membranes and enzymes interfering with metabolism and adherence mechanisms In in vitro studies bismuth subcitrate potassium demonstrates inhibitory activity with IC50 values typically ranging between 5 20 g/mL against various Helicobacter pylori strains Based on these pharmacological properties bismuth subcitrate potassium holds research potential in gastrointestinal investigations related to Helicobacter pylori infection