economic community (eec) (in regards to pharmaceuticals and naturopathic preparations) has officially ruled santonin preparations to have an "unacceptable" risk-benefit ratio and preparations containing santonin are no longer eligible for registration in eu countries . santonin and absinthe while absinthe is certainly more infamous for its content of thujone, the liquor does also contain small amounts of santonin . it has been speculated by some parties that impressionist art—in particular, van gogh's artwork—may have been inspired not by thujone and its presumed psychotropic effects, but on the "yellow vision" or xanthopsia which is a known side effect of santonin. this has been disputed, however, most notably by arnold and loftus (1991) who have noted the santonin content would have been insufficient to cause xanthopsia.