Displaying 5 results of Valdecoxib Impurities Valdecoxib is a nonsteroidal anti-inflammatory drug (NSAID) that is used to treat pain and inflammation associated with arthritis. Valdecoxib impurities are unwanted substances that are present in small amounts in the drug. These impurities can affect the quality, safety, and efficacy of the drug. Therefore, it is important to monitor and control the levels of Valdecoxib impurities during the drug manufacturing process. This helps ensure that the drug is safe and effective for patients to use.