Effectiveness of treatment. What to do?

He had a problem with his immediate supervisor in his earlier job, subsequently he had changed job, but he felt that the earlier superior was evil and disturbs his mind and used to slap his head with his hands and used to shout 'get out of my life, why're you guys ruining my life' etc. He felt that there is a technology either which someone can mess up with his mind. Due to this he had left the well paying another job well. He really loved the new job and tge company. Now that he has come down to India after qutting we had consulted two psychiatrists, after a month of sitting at home. Firstly, he refuses to divulge all this information to the doctor and tells the doctors that he has 'ADHD'. Though he shared it with us (parents) he totally denies that. Though we narrated our side, the psychiatrist has prescribed Tricita (10+0.5mg), half a tablet daily and Amazeo 50mg twice a day. He doesn't move out of the house, mostly he closes the door stay indoors in his room. what to do?