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Cocaine is a stimulant drug. It has potential to cause psychosis
. It can precipitate acute psychosis. He is having paranoid ideation, insecurity, irrational behavior, abnormal thinking, anger outbursts etc symptoms. These are most likely due to psychosis. I would advise you to take him to a Psychiatrist
for expert evaluation and treatment. He may show violent behavior also which may pose danger to him as well as to you. Medicines like olanzapine
etc can control all these symptoms.
Dr. Seikhoo Bishnoi, MD