Toxicological Trivia from January 06, 2010: From Absinthe, a drink that is fashionable again, it said it contained a powerful poison that causes hallucinations or seizures.Wormwood, also known as absinthe or "the green fairy" because of his color, is obtained through distillation of herbs or herbal extracts, including absinthe (Artemisia absinthium). It may also contain:
a) Fennel;
b) Green anise;
c)  Both previous assertions are correct.

Correct answer c. See article in Spanish Wormwood clarified. Read more in Wikipedia