Roxithromycin is an antibiotic used to treat bacterial infections. However, during the manufacturing process, impurities may be present in the final product. These impurities can be harmful to human health and may affect the quality and effectiveness of the medication. Therefore, it is important to monitor and control the level of Roxithromycin impurities to ensure the safety and efficacy of the medication. Various analytical methods are used for the detection and quantification of Roxithromycin impurities, which include high-performance liquid chromatography (HPLC), gas chromatography (GC), and mass spectrometry (MS).