LSD has a very wide receptor binding profile, see Table 8 of this paper: http://www.maps.org/research-archive/w3pb/2008/2008_Passie_23067_1.pdf http://www.maps.

LSD has a very wide receptor binding profile, see Table 8 of this paper: http://www.maps.org/research-archive/w3pb/2008/2008_Passie_23067_1.pdf http://www.maps.org/research-archive/w3pb/2008/2008_Passie_2... It also does bind to dopamine receptors, which is why it's more stimulating than other psychedelics.