Heroin

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  • Heroin
    • Mode of action
      • GABA activity is inhibited (naturally slows down neural firing)
        • Increases the level of dopamine in the brain
      • Mimics endorphins to release dopamine via the reward system being activated
      • The heroin acts on opiod receptor sites
      • Triggers the release of neurotransmitters at receptor sites at the synpase
    • Treatment - Methadone
      • Requires supervision when taken (has to be taken orally)
        • But can be sold to the black market as other intentions
          • Requires motivation otherwise treatment will not work
        • Lasts 24 hours long (longer then heroin)
        • Reduced risk of needle sharing and spread of diseases
      • Synthetic opiate which blocks the receptor sites so that heroin does not have its effects on the body
      • Difficult to overdose but can become reliant on the drug
  • Requires supervision when taken (has to be taken orally)
    • But can be sold to the black market as other intentions
      • Requires motivation otherwise treatment will not work
    • Lasts 24 hours long (longer then heroin)
    • Reduced risk of needle sharing and spread of diseases

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