The authors surveyed a sample of psychiatrists, psychiatric residents, internists, general practitioners, and psychologists in Los Angeles County to determine the number of patients with adverse LSD reactions seen by these professionals during an 18-month period. Over 2,000 adverse reactions were reported on, and the authors regard this as a conservative estimate. Although many clinicians feel...
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...