Postoperative pain is a major problem in clinical practice. Non-steroidal anti-inflammatory drugs have traditionally been used to relieve postoperative pain. Administration of intravenous products together can result incompatibility problems and this is clinically hazardous. Reference texts, published reports can provide information about drugs' incompatibility characteristics but there have been limited data for new drugs such as lornoxicam, tenoxicam and dexketoprofen, commonly used non-steroidal anti-inflammatory drugs. In this study, it was aimed to investigate whether there is precipitation between lornoxicam, tenoxicam and dexketoprofen with other commonly used drugs in anesthesiology practice.