Displaying 2 results of Maropitant Impurities Maropitant is a drug used to prevent and treat vomiting in dogs and cats. During the manufacturing process of maropitant, impurities may be produced which can affect the purity, safety, and efficacy of the drug. Therefore, it is important to identify and control these impurities to ensure the quality of the final product. Various analytical techniques are used to detect and quantify maropitant impurities, including chromatography and spectroscopy.