Neuropsychological variables and urine cannabinoid metabolites were evaluated in ten subjects born, raised, and educated in the United States and having histories of heavy or prolonged use of cannabis. No impairment of cognitive function was found. Cannabinoid metabolites in excess of 50 nanograms per milliliter were present in the ten urine samples. The tetrahydrocannabinol content of cannabis...
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...
The symptoms, diagnostic categories, and general characteristics of patients in 70 cases of adverse reactions to lysergic acid diethylamide tartrate (LSD) are varied. Psychiatric side effects ranged from depressive reaction to psychotic states. In all cases, LSD ingestion occurred separately and apart from medical-experimental and psychiatric-therapeutic models of LSD usage. Findings based on...
The symptoms, diagnostic categories, and general characteristics of patients in 70 cases of adverse reactions to lysergic acid diethylamide tartrate (LSD) are varied. Psychiatric side effects ranged from depressive reaction to psychotic states. In all cases, LSD ingestion occurred separately and apart from medical-experimental and psychiatric-therapeutic models of LSD usage. Findings based on...