Absinthe at the beginning of the 20th century in several European countries banned because ofalleged hallucinogenic effect and neurotoxicity of the substance thujone. The reason for the ban was the tragic case of the Swiss alcoholic Jean Lanfray After excessive alcohol consumption, including two glasses of absinthe, his family killed off.
If surrogate developed the company Pernod famous anis, actually an absinthe without wormwood.Other manufacturers entered the market with their pastis, which the herbal extracts but not by distillation were obtained by maceration.
Recent research has the psychoactive properties of thujone can show only at very high doses, much higher than that of normal absinthe consumption exists. The green color of absinthe is derived from chlorophyll from an extract of leaves of wormwood, lemon balm, hyssop and fennel.Only in rare cases, the green color is obtained by adding copper or indigo. 
Today, absinthe is again allowed in the European Union. However, the current absinthe is not comparable with those of the past: the maximum concentration of thujone in absinthe is legally established and is now at least 25 times lower. In countries like Germany and France since the 90s again absinthe produced. Other absinthe-producing countries such as Spain and Portugal, have never known a ban on absinthe. In the Netherlands the sale of absinthe was prohibited bythe absinthelaw 1909. In 2005 it was withdrawn, followed by Belgium in the same year.