Displaying 21 results of Lidocaine Impurities Lidocaine is a local anesthetic that is commonly used in medical procedures. However, it is important to ensure that it is pure and free from any impurities that could potentially cause harm to patients. Lidocaine impurities are unwanted substances that may be present in the drug, which can affect its safety and efficacy. These impurities can be the result of the manufacturing process, storage conditions, or even the use of contaminated raw materials. Identifying and controlling lidocaine impurities is crucial in ensuring patient safety and the effectiveness of the drug.