<prompt> Use of which drugs may induce symptoms with a close differential diagnosis of paranoid schizophrenia?BenzodiazepineAmphetaminesCaffeineHeroin  <response>: Ans. B. Amphetamines Amphetamine intoxication can result in a psychosis very closely resembling acute paranoid schizophrenia, with symptoms including paranoid delusions and visual hallucinations. Some investigators feel that prominent visual hallucinations and a relative absence of thought disorder are more characteristic of amphetamine psychosis, but other investigators feel the symptoms are indistinguishable. Other drugs that produce psychoses similar to schizophrenia include phencyclidine PCP and lysergic acid diethylamide LSD. 