There exists cannabis psychosis. Naturally, more psychosis will exacerbate a psychotic illness. It usually brings it on earlier and heavier in severity i.e typi

There exists cannabis psychosis. Naturally, more psychosis will exacerbate a psychotic illness. It usually brings it on earlier and heavier in severity i.e typically schizophrenia presents later but cannabis usage in adolescents seems to trigger it. The same is true for amphetamine. Interestingly, amphetamine has been hypothesised as a chemical model for schizophrenia. Amphetamine psychosis is extremely similar to the positive symptoms of schizophrenia. In fact, many of the treatments used for psychotic illnesses repress dopamine activity in certain receptors (the newer ones, the typical antipsychotics, are less 'targeted' than newer ones leading to Parkinsonian side effects).