The "Bad Trip"—The Etiology of the Adverse LSD Reaction
American Journal of Psychiatry May 1, 1968 J. Thomas Ungerleider, Duke D. Fisher, Marielle Fuller et al. 59 citations
In an attempt to identify the factors responsible for adverse reactions to LSD and to elucidate the rising incidence of hospital admissions associated with use of the drug, the authors compared 25 psychiatric inpatients hospitalized following LSD ingestion with 25 members of a group who took LSD together regularly without reported difficulty. Although some differences were found between the...