Displaying 9 results of Fenoterol Impurities Fenoterol is a bronchodilator medication used to treat asthma and other respiratory conditions. However, during the manufacturing process, various impurities may be present in the final product. These impurities can affect the safety and efficacy of the medication, potentially leading to adverse reactions or reduced effectiveness. Therefore, it is important to monitor and control the levels of fenoterol impurities to ensure the quality of the medication.