Drug-induced psychosis disorders Psychosis brought on by the use of drugs usually results from prolonged or heavy substance use. It appears quickly and lasts a short time, from a few hours to days. The most common signs are visual hallucinations, disorientation, and memory problems. In some cases, drug use may trigger longer lasting conditions such as schizophrenia. Teenagers are particularly vulnerable to drug use because of their brain development (14). The chances of developing psychosis from cannabis use are higher today than in the 1960s due to an increase in the strength of the psychoactive part of the drug (THC). Other variables include how young a person is when they start smoking and how often they smoke. Hallucinogenic drugs, such as LSD, magic mushrooms, Salvia divinorum (sage), and dimethyltryptamine (DMT) can induce psychosis by heightening senses. Stimulants such as amphetamines and cocaine impact neurotransmitter signalling in the brain, which mimics the symptoms of psychosis. This usually lasts a few days but can persist for years. Other drugs, such as ecstasy (MDMA or E), can cause low mood for several days after
use that can worsen existing psychotic illness. Youth MHFA considerations for psychosis Revisit the Youth MHFA action plan in full.
Remember that people who are experiencing psychosis will often not reach out for help. Someone who is experiencing profound and frightening thoughts or, very real-feeling delusions and hallucinations, may try to keep them a secret. They may even not recognise that what they are experiencing is different to others. Understand that a young person you approach might not trust you (227). Approach them privately in a caring manner, away from distractions.
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