absinthe
Absinthe is made from wormwood. wormwood makes you high.
or something to that effect.
though a quick search on the web brings up this:
[Q]uality absinthe, properly distilled, does have a different effect over and above the results of alcohol, though at up to 70%, the effects of the alcohol alone can be considerable. Absinthe's effects, despite popular conception, are not due to the wormwood (Artemisia Absinthia) alone. Absinthe's constituents consist of a very delicate balance of various herbs, most of which contribute in one way or another to its intoxicating effects. [Chemist and absinthe expert] Ted Breaux once explained it that it is a push-me, pull-you effect of the various herbs, as some are of an heightening effect, and others are lowering. The effect on the individual is subjective, and can best be described as a kind of heightened clarity of mind and vision, mildly ponderous and sparkling, and warmed by the effect of the alcohol. This seems to wear off after 20 or 30 minutes, leaving one with an alcohol buzz. 2-3 glasses seems to do the trick. More than that, depending on the proof of the alcohol, will just make you very drunk.
But saying all that, 'secondary effects' seem to be quite subjective. Some have never felt them at all. Some say one brand works for them, others another. Many absintheurs ... have placed absinthe's 'effects' low on their priority list when it comes to judging modern commercial absinthes, preferring to focus on actual herbal constituents, manufacture and historical detail.
I say that is some dude making himself sound important, and therefore, all hooie. wormwood makes you high.
Moo