Another name for acid is lysergic acid diethylamide (LSD). In the 1950s, doctors used it in psychotherapy and to enhance the effects of antipsychotics. In the late 1960s, people started to use LSD as a recreational drug.
People also refer to LSD by its street names: blotter, dots, and yellow sunshine. It is an illegal drug of abuse and one of the most powerful mood-changing substances.
In this article, we describe how long LSD stays in the body and how long tests can detect it after a person takes a dose. We also discuss the effects and risks.