Assessing the Potential Cardiovascular Risk of Microdosing the Psychedelic LSD in Mice
This pre-clinical mouse study tested chronic administration of serotonin, d-fenfluramine, or subhallucinogenic doses of LSD on cardiovascular health. Serotonin and d-fenfluramine caused ventricular thickening and valve regurgitation, respectively, while LSD produced no significant ventricular or valvular changes. Receptor binding assays showed LSD, psilocybin, and norfenfluramine had similar affinity for 5-HT2B, but LSD’s activation was short-lived, providing no evidence of heart remodeling with prolonged low-dose LSD.
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