In the late 1960s, the 112-bed sanatorium in the village of Sadská (50km east of Prague) was the largest LSD clinic in Europe. Directed by Dr. Milan Hausner, the Sadská clinic used a “dynamic confrontation model” of therapy, making patients face all the aspects of their disorder by participating in group discussions and work brigades, creating art and music and psychodramas of their lives, and repeatedly undergoing LSD intoxication to help them express their unconscious thoughts. Approximately 350 patients experienced thousands of LSD sessions at Sadská, until medical authorities abruptly stopped all LSD therapy there in 1974. What worked, what didn’t? What lessons can today’s therapists learn from Sadská? The author will present his research into the history of the clinic, the life of Dr. Hausner, and followup interviews with former Sadská patients. Ross Crockford is a Canadian author and journalist. In 2007, he received a grant from the Multidisciplinary Association of Psychedelic Studies to interview patients who underwent LSD psychotherapy in former Czechoslovakia in the 1960s and 1970s. He is currently writing a book about the history of psychedelics in communist Europe.