According to the National Alliance on Mental Illness, psychosis refers to an episode in which an individual has a break from reality. This often includes but doesn’t require delusions, or false beliefs that are firmly held despite clear evidence to the contrary, and hallucinations. About 3 in every 100 people will experience at least one episode of psychosis in their lifetimes.
Drug-induced psychosis, also known as substance-induced psychotic disorder, is simply any psychotic episode that is related to the abuse of an intoxicant. This can occur from taking too much of a certain drug, having an adverse reaction after mixing substances, during withdrawal from a drug, or if the individual has underlying mental health issues. Though it’s not actually true that taking a certain kind of drug can suddenly trigger a severe mental illness where none had existed, mental illness is a predictor of substance abuse, and someone prone to psychosis can be triggered by becoming overly intoxicated.
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