Cannabis withdrawal is relatively new as an official diagnosis, though the term has been in use for a number of years. Thus, cannabis withdrawal is listed as a diagnosis in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), which was first published in 2013, though it was not listed as a diagnosis in previous editions of the DSM. The inclusion of cannabis withdrawal in the DSM-5 reflects the increasing recognition that abrupt cessation of daily or near-daily cannabis use often results in the onset of cannabis withdrawal syndrome. Cannabis withdrawal had previously been considered to be a somewhat controversial diagnosis because of questions concerning its clinical significance, its symptom profile, and its time course. However, as those features of cannabis withdrawal have ...