Displaying 4 results of Glycopyrronium Bromide Impurities Glycopyrronium bromide is a medication used to treat conditions such as excessive sweating and chronic obstructive pulmonary disease. However, like all medications, it may contain impurities that can affect its safety and efficacy. These impurities may be residual solvents used in the manufacturing process, degradation products, or other contaminants. It is important to monitor and control these impurities to ensure the quality and safety of the medication.