File:LSDaffinities.GIF

Summary
I created this file from public source data (http://pdsp.cwru.edu/pdsp.php). The black horizontal line represents the a plasma level of LSD in humans during recreational use (Aghajanian & Bing, (1964) Clin. Pharmacol. Ther. 5, 611-614) and hence receptors which LSD has an affinity for above the line are unlikely to be affected by recreational LSD doses.