Displaying 4 results of Cefalexin Impurities Cefalexin impurities refer to any unwanted substances that may be present in cefalexin, a common antibiotic medication. These impurities can be the result of various factors such as manufacturing processes, storage conditions, or interactions with other substances. The presence of impurities in cefalexin can affect its efficacy and safety, and therefore, it is important to monitor and control the levels of impurities in the medication.