The term antipsychotic is applied to a group of drugs used to treat psychosis. Common conditions with which antipsychotics might be used include schizophrenia, mania and delusional disorder, although antipsychotics might be used to counter psychosis associated with a wide range of other diagnoses. Antispychotics also have some effects as mood stabilizers, leading to their occasional use in treating mood disorder (particularly bipolar disorder) even when no signs of psychosis are present.  Psychosis is a psychiatric classification for a mental state in which the perception of reality is distorted. Persons experiencing a psychotic episode may experience hallucinations (often auditory or visual hallucinations), hold paranoid or delusional beliefs, experience personality changes and exhibit disorganized thinking (see thought disorder). This is sometimes accompanied by a lack of insight into the unusual or bizarre nature of their behaviour and an inability to cope in society.