LSD was first synthesized by Albert Hoffman, of Sandoz Laboratories in Switzerland as part of a research program seeking medically useful derivatives of ergot alkaloids.
LSD was introduced as a psychiatric drug by Sandoz Laboratories.
The clandestine operation codenamed MK ULTRA was initiated by America’s Central Intelligence Agency.
America’s Food and Drug Administration classified LSD as an Investigational New Drug, placing restriction on research.
Possession of LSD was made illegal in the United States.
The Controlled Substances Act was passed, defining a scheduling system for drugs. LSD was placed in the most restrictive schedule- Schedule I
The last FDA approved study of LSD in patients ended.
LSD is no longer legally approved and regulated for psychiatric use in Switzerland.