In adults with a genetic risk cannabis abuse can cause psychosis or may worsen the progress of schizophrenia.

Like acid and E, cannabis can cause psychosis to anybody with a disturbed personality, although this only occurs in extreme cases.

Can cause paranoia, psychosis, sterility and flashbacks several years after the drug is taken.

The problem with drinking the brothers' alcohol was that it was known, even at that time, to "cause psychosis."

It is also known to cause severe psychosis on people who regularly smoke, there is no known reason why, however.

A number of substances and medical conditions can cause psychosis, including:

A very large number of medical conditions can cause psychosis, sometimes called secondary psychosis.

Increased levels of dopamine can cause psychosis, agitation, and restlessness.

Trapped within glass tanks, the constant reverberation of the dolphins' clicks can cause psychosis.

In animal experiments, solitude has been shown to cause psychosis.