and continued into adulthood, both a substance use disorder  and antisocial personality
disorder should be diagnosed if the criteria fo r both are met, even though some antisocial
acts may be a consequence of the substance us e disorder (e.g., illegal selling of drugs, thefts
to obtain money for drugs).
Schizophrenia and bipolar disorders. Antisocial behavior that  occurs exclusively dur-
ing the course of schizophrenia or a bipolar disorder should not be diagnosed as antisocial
personality disorder. 
Other personality disorders. Other personality disorders may be confused with antiso-
cial personality disorder because they have certain features in common. It is therefore im-
portant to distinguish among these disorders based on differences in their characteristic
features. However, if an indivi dual has personality features that meet criteria for one or
more personality disorders in addition to antisocial personality disorder, all can be diag-
nosed. Individuals with antisocial personalit y disorder and narcissistic personality disor-
der share a tendency to be tough-minded, glib , superficial, exploitative, and lack empathy.
However, narcissistic personality disorder does not include ch aracteristics of impulsivity,
aggression, and deceit. In addition, individuals with antisocial personality disorder may
not be as needy of the admiration and envy of others, and persons with narcissistic per-
sonality disorder usually lack the history of  conduct disorder in childhood or criminal
behavior in adulthood. Indivi duals with antisocial personality disorder and histrionic
personality disorder share a tendency to be impulsive, superficial,  excitement seeking,
reckless, seductive, and manipulative, but pe rsons with histrionic personality disorder
tend to be more exaggerated in their emotions  and do not characteristically engage in an-
tisocial behaviors. Individuals with histrion ic and borderline pers onality disorders are