Zusammenfassung der Ressource
Heroin
- Mode of action
- 1- morphine produced when taking heroin is a painkiller
- 2- the morphine acts upon opium receptor sites
- 3- the binding to opiate receptors triggers release of the neurotransmitter dopamine
- 4- morphine mimics endorphons to stimulate this dopamine reward system
- 5- GABA activity is inhibited
- 6-It increases dopamine levels in the brain
- Effects
- short term
- pleasure feelings
- reduction of pain
- rush
- dry mouth
- heavy limbs
- flushing of skin
- relaxation
- drowsiness
- slowing of mental functioning
- Long term
- psychological and physical dependence
- tolerance
- cravings
- collapsed veins
- diffiulty breathing
- infections
- Withdrawal effects
- Itchy skin
- Sickness
- Diarrohoea
- sweating
- insomia
- depression
- anxiety
- Tolerance
- More heroin is needed to reach the same 'rush' or pleasurable feelings as the first time becoming more addicted
- Physical dependence
- Means the body cannot function without Heroin in its system
- Psychological dependence
- the mind won't be able to function without it