Displaying 13 results of Loperamide Impurities Loperamide is an antidiarrheal medication that is commonly used to treat diarrhea. However, during the manufacturing process of loperamide, various impurities may be formed. These impurities can have negative effects on the purity and potency of the drug, and can pose potential health risks to patients. Therefore, it is important to closely monitor and control the levels of impurities in loperamide formulations to ensure their safety and efficacy.