Displaying 1 results of Hydrocodone Impurities Hydrocodone is a commonly used medication for pain relief. However, during the manufacturing process, impurities may be introduced. These impurities can have harmful effects on the body and may cause adverse reactions. It is important to monitor and control the levels of impurities in hydrocodone to ensure the safety and effectiveness of the medication. Various techniques such as quality control measures, analytical testing, and purification methods can be used to minimize the presence of impurities in hydrocodone.