There is no one specific treatment for drug-induced psychosis, and it is not always necessary to give a person medication to counteract the psychosis. The first order of care usually involves stopping the drug that triggered the psychosis, then monitoring the person in a safe and calm environment. That is often all that is needed, especially when the triggering substance is a hallucinogen.
If the person is agitated, an anti-anxiety agent may be given. In cases of psychosis triggered by use of an amphetamine-related substance, which stimulates the release of dopamine in the brain, an antipsychotic medication such as haloperidol may be given to alleviate the acute psychotic symptoms.
Once the psychosis has passed, those who are chronic drug users are often advised to begin treatment for substance use disorder. In situations where the psychosis is triggered by a prescription drug used to manage a medical condition, patient and doctor need to find an alternative treatment.