[citation needed] Pressured speech is unrelenting, rapid, often loud talking without pauses.
[citation needed] Pressure of speech mainly happens in the bipolar disorders, during the hypomanic and manic episodes.
[10] Stimulants such as cocaine or amphetamines may cause speech resembling pressured speech in individuals with pre-existing psychopathology and produce hypomanic or manic symptoms in general, owing both to the substance's own qualities and the underlying nature of an individual's psyche.
In many psychotic disorders, use of certain drugs amplifies certain expressions of symptoms, and stimulant-induced pressured speech is among them.
Pressured speech may lead to stuttering, e.g., whenever the persons want expressing themselves faster than their ability to utter their thoughts.