Fosinopril is an antihypertensive drug used to treat high blood pressure. Impurities in Fosinopril can affect the quality and safety of the medication. The impurities may occur during the manufacturing process or storage of the drug. The identification and quantification of Fosinopril impurities are essential to ensure the drug's efficacy and safety. The presence of impurities in Fosinopril can lead to adverse effects on patients and decrease the drug's