Paranoid Psychosis with cocaine is seen due to
The complications of chronic cocaine use include acute anxiety reaction, uncontrolled compulsive behaviour, psychotic episodes (with persecutory delusions, and tactile and other hallucinations), delirium and delusional disorder. Ref: Sho textbook of Psychiatry by Niraj Ahuja, 7th edition page 47.
Tolerance
Withdrawal
Reverse Tolerance
Intoxication
Substance abuse