👉 Psychoactive is a term used in the field of psychiatry and psychology to describe substances that cause an altered state of consciousness, particularly when taken in large quantities or over extended periods. These substances can include hallucinogens (such as LSD), stimulants (such as amphetamines), depressants (such as opioids), and other psychoactive compounds. The term "psychoactive" is often used to describe the effects that these substances have on a person's mental state, including mood