Primary Mental Disorders
Amphetamine-Induced Disorders may be characterized by symptoms (e.g., delusions) that resemble primary mental disorders (e.g., Schizophreniform Disorder versus Amphetamine-Induced Psychotic Disorder, With Delusions, With Onset During Intoxication).
Cocaine Intoxication, Hallucinogen Intoxication, and Phencyclydine Intoxication may cause a similar clinical picture and can sometimes be distinguished from Amphetamine Intoxication only by the presence of amphetamine metabolites in a urine specimen or amphetamine in plasma. Amphetamine Dependence and Abuse should be distinguished from Cocaine, Phencyclidine, and Hallucinogen Dependence and Abuse. Amphetamine Intoxication and Amphetamine Withdrawal are distinguished from other Amphetamine-Induced Disorders (e.g., Amphetamine-Induced Anxiety Disorder, With Onset During Intoxication) because the symptoms in these latter disorders are in excess of those usually associated with Amphetamine Intoxication or Amphetamine Withdrawal and are severe enough to warrant independent clinical attention.