Displaying 5 results of Guaifenesin Impurities Guaifenesin is a widely used expectorant medication that helps to relieve cough and chest congestion. However, like any other medication, it may contain impurities that can be harmful to the human body. These impurities can be due to various factors such as manufacturing processes, storage conditions, and environmental factors. Therefore, it is essential to ensure that guaifenesin products are free from impurities to avoid any adverse effects on the user. Regulatory bodies such as the US FDA have