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Which drugs have which effects?

There are 3 basic kinds of drugs, classified according to their effects on the central nervous system.


They cause disorientation (difficulty locating oneself in time and space) and change how the senses work (for example, sight and touch).

  • Some examples: cannabis, magic mushrooms, LSD, MDMA, PCP, ketamine


These drugs numb the brain and slow down the body’s functioning. Some of them can also distort perception.

  • Some examples: alcohol, GHB, heroin


In general, these drugs cause excitation and agitation.

  • Some examples: amphetamines, cocaine, methamphetamine

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