Looking for Toxin X (Czech: Hledá se Toxin X) is a short Czechoslovakian popular science documentary about LSD.
A dose of LSD is given to a DAMU theatre student, Petr Oliva, by the Czech psychiatrist Stanislav Grof.
The film's central premise is the search for ‘toxin x’, which is supposed to be at the root of all mental disorders.
The medics believe that LSD will help them locate it.
The experimental subject Oliva (who went on to become a prominent Czech actor) later recalled that the reason everyone was given the drug was because, “we had to see for ourselves what happens to a person [when they are given the drug].”[3] Excerpts from the film appear in the documentary LSD made in ČSSR (2015) directed by Pavel Křemen.”[3]