After a 95-year ban, absinthe is legal again in the United States. But there are a lot of myths surrounding the drink, such as its madness-inducing properties.
Absinthe was a favorite among 19th century French artists, who were sometimes mad already. It is not particularly addicting, and does not make you hallucinate any more than other liquors. Salon magazine debunks these and other myths in the article Everything you know about Absinthe is Wrong.