How Do Drugs Affect You?

Drugs are usually categorised depending on the nature of the effect they have on the central nervous system (CNS).

  • Depressants (e.g. alcohol, heroin, solvents) depress the CNS
  • Stimulants (e.g. caffeine, amphetamine, cocaine) stimulate the CNS
  • Hallucinogens (e.g. LSD) can result in perceptual distortions and hallucinations

Some drugs (e.g. ‘ecstasy’) might have effects in more than one area (e.g. stimulant and hallucinogen) while heavy doses of some drugs might alter the types of effects (e.g. while cannabis is usually categorised as a depressant, in very heavy doses there might be hallucinogenic effects).