Transient psychotic episodes following recreational use of NRG-3

The increased availability of novel psychoactive substances or ‘legal highs’ over the internet has made screening for recreational drug use much more difficult for doctors in recent years. Here, Drs Kihara and Day describe the case of a young male patient repeatedly presenting with transient psychotic episodes who eventually revealed that each episode had followed the use of NRG‐3 obtained from the internet.