Does Addiction Trigger Genuine Psychosis?

[LW75]

I know that drug use can make people think in a paranoid way.

What I'm wondering is this: There are people who may be prone to developing something like paranoia or schizophrenia; and there are people who may not already be more prone than others.

Can drug abuse trigger or cause a permanent mental illness (the ones above or other psychosis) in people of either group? In other words, can it cause a person who would have otherwise been absolutely mentally healthy to develop psychosis that may then become a permanent problem (without the use of medication)?

What about those who are predisposed to psychosis anyway?

[attagirl]

You know I have not seen any medical evidence of this, but would think that any stress caused to the body would cause chemical imbalances and changes to occur in way of thinking because of drugs or starvation even if it is only a temporary thing.