Persistence of lysergic acid diethylamide in the plasma of human subjects
Clinical Pharmacology & Therapeutics – September 01, 1964
Source: OpenAlex
Summary
A significant finding reveals that after administering two micrograms per kilogram of Lysergic acid diethylamide (LSD-25) intravenously to five normal human subjects, the drug was detected in substantial amounts during its peak effect. Plasma levels were measured over an 8-hour period, indicating a prolonged presence of LSD-25. Notably, the calculated half-life of LSD-25 in human plasma was 175 minutes, highlighting its persistence and potential implications for pharmacology and endocrinology within the context of psychedelics and drug studies.
Abstract
Two micrograms per kilogram of LSD‐25 was administered intravenously to five normal human subjects. The concentration of drug in plasma was determined serially over the subsequent 8 hours. LSD‐25 was found to be present in human plasma in relatively large quantities during the period of peak effect. The half‐life of LSD‐25 in human plasma was calculated to be 175 minutes.