A significant variable in the genesis of peptic ulcers is Helicobacter pylori, which could be eliminated through several strategies. Amid them, there is a strategy based on receptor histamine-2 (e.g., famotidine) antagonist in conjunction with metronidazole and amoxicillin as antibiotics. This research used UV spectrophotometry paired with chemometrics to clarify the concurrent analysis of famotidine (FAM), amoxicillin (AMX) and metronidazole (MET) in bulk powder and mixed tablet formulations. The first derivative was calculated for determining FAM and MET. Nonetheless, the methods of double divisor ratio spectra and Fourier functions were incorporated for determining each of the three medications. The methods linearity was fine in the strength ranges of 3-20 µg mL