Displaying 7 results of Benzydamine Impurities Benzydamine is a nonsteroidal anti-inflammatory drug used to relieve pain and inflammation in the mouth and throat. Benzydamine impurities refer to any additional substances present in the drug that are not the active ingredient. These impurities can affect the quality and purity of the drug and may have potential side effects. It is important to ensure that the levels of impurities in any medication are within acceptable limits to ensure patient safety and efficacy.