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Illegal drugs

In Switzerland, heroin, cocaine, ecstasy, amphetamines, cannabis etc are illegal drugs. The law against narcotics (Lstup) states that consumption, possession, production and sale of illicit substances is punishable by law. The authorities publish and update a list of banned substances. 

In 2006, 39,000 individuals were stopped by police for illegal drug possession. The majority of these were for offences related to cannabis; next most common were cocaine and heroin. 


Cannabis is considered a soft drug. However, taking cannabis can be dangerous. 
  • A heavy cannabis user suffers a short attention span and memory deficiencies.
  • Cannabis has an effect on mental illness. It can cause early onset of schizophrenia or bipolar disorder. It can worsen the progression of schizophrenia or provoke relapses.
  • Cannabis consumption can lead to psychological addiction.
  • Heavy users can suffer physical withdrawal symptoms.


Cocaine is one of the most addictive drugs. Users can quickly become dependant, putting their mental and physical health danger. 


Heroin is one the most dangerous substances. Users are heavily dependant both physically and mentally. Users crave the effects of their first dose and quickly need to take more and more. The need for heroin becomes uncontrolled and users need the drug purely to overcome their constant withdrawal symptoms.

In this section: Illegal drugs, Alcohol, Smoking

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