My brother has been suffering from the borderline personality disorder(BPD) since the last 6 months. Doctor had prescribed lots of medicine for him like fluoxetine, sertraline, paroxetine. My brother is also taking these medicines carefully. But doctor had told me that Using multiple medications at the same time also called polypharmacy can put a person at risk for attempting to use their supply of medications to commit suicide. Doctor had told me that you should have to take care of your brother. So I want to ask from you people is it true? And what is to be done for avoiding this situation?