LAUSR

#### What you need to know Identifying and managing acute drug related harms and problematic substance misuse cuts across medical specialties. Data suggest that clinicians are seeking readily accessible information on novel psychoactive substances (NPS), incorrectly known as “legal highs.” Clinicians may encounter acutely disturbed or unwell patients, individuals with harm or dependency related to chronic NPS use, and those reporting incidental consumption that might require psychoeducation and monitoring. Such assessments will have more successful and meaningful outcomes if clinicians are aware of the spectrum of NPS available and how they might affect their patient. The linked clinical update1 describes the different classes of NPS and their effects. This article provides practical advice to the non-specialist on how to approach an assessment of individuals using NPS, including examples of acute and chronic use. A sensitive, non-judgmental approach is essential. Key aspects of the history are applicable in all scenarios. Boxes 1 and 2 cover specific issues relevant to emergency and longer term presentations. Patients may be concerned about being criticised for using drugs, and they might be uncertain of, but worried about, the potential harms and available services for those using NPS. Individuals can also be fearful of legal consequences of disclosure, and the principle and limits of confidentiality should be discussed. Adopt an empathic line of questioning, such as “I can imagine it might be difficult or worrying to talk about drug/NPS use. My role is to try understand …