Nebramine is a drug used for treating various medical conditions. However, during the production process, impurities may be formed, which can affect the efficacy and safety of the drug. Nebramine impurities can be classified as process-related, degradation-related, or environmental-related. These impurities must be carefully monitored and controlled to ensure the quality and safety of the medication. Regulatory agencies such as the FDA and EMA have strict guidelines for the maximum allowable levels of nebramine impurities in drug products.