https://www.webmd.com/schizophrenia/gui ... sychosis#1
CausesDrugs CAN cause mental health issues but they DO exacerbate them.
Doctors do not know exactly what causes psychosis, but there are many theories. In some people who have a biological vulnerability to developing psychosis, it may be triggered by too little sleep, some prescription medications, and abuse of alcohol or drugs like marijuana and LSD.
Traumatic events, like the death of a loved one or a sexual assault, can lead to psychosis in people who are vulnerable to it. So can traumatic brain injuries, brain tumors, strokes, Parkinson’s disease, and Alzheimer’s disease.
Psychosis can also be a symptom of a mental illness, like schizophrenia or bipolar disorder.
That is why people with mental health issue should NOT take any or drink for that matter.