I don't know much about absinthe but I do have a bottle of it. La Fée (The Fairy). I haven't had any of it because it smells like rocket fuel but my mother did. She says "you have to be made of strong sh*t to drink that." She stopped after one glass, which she drank veeery slowly. We got it as a gift (a somewhat smuggled gift) from France.
The only reason absinthe causes hallucinations is because it's high in alcohol. Like, seriously high. Most of the liquor we have today isn't full alcohol, but there's a crap load in absinthe.
It's definitely not something I would compare to heroin, though. :P
Uhmm...absinthe isn't like heroin or hashish...definitely not like hash...It's not really a drug, its just an illegal alcohol because it's such a high percentage. I know people who make it, I suppose it could kill you from alcohol poisoning, but it's just like any alcohol that high. I think this is just a copy past, but yeah...it's not a drug.