The primary cause of psychosis is mental illnesses, which may be due to the relationship between mental illnesses and traumatic life events. However, drug-induced psychosis is also possible with many drugs of abuse. Mental illnesses that cause psychosis include:
Other potential causes of psychosis include:
- Other Causes of Psychosis
Traumatic brain injury
Drugs That Cause Psychosis
Many drugs of abuse can cause psychosis, which is due to how drugs work within the brain. Cocaine or methamphetamine can cause symptoms that are similar to schizophrenia, particularly with repeated and heavy use.
Research also suggests that alcohol-induced psychosis is possible. In fact, the prevalence of alcohol misuse among people with psychosis is higher than the general population. Marijuana-induced psychosis is also a real possibility, especially when a person consumes high-potency marijuana or synthetic cannabinoids. Research suggests that this interaction may be related to variations in dopamine receptors.
In short, the following substances have all been associated with drug-induced psychosis:
Related Topic: Can alcohol cause schizophrenia?
Medication-induced psychosis can also occur. For example, drugs for attention-deficit hyperactivity disorder have been associated with psychosis. These include Adderall and methylphenidate, which can each cause adverse reactions that include psychosis symptoms.
Additionally, psychosis can occur as a part of medication withdrawal, especially with antipsychotic drugs. Once the brain has become used to having an antipsychotic in its system, ending use can cause symptoms to rebound even more dramatically. This is one reason why psychiatric medications should not be discontinued without first consulting a medical professional.