Behavioural effects of addictive drugs
CNS stimulants: amphetamine, cocaine, nicotine, caffeine.
CNS depressants: alcohol, opioids, barbiturates, benzodiazepines, volatile solvents.
Hallucinogens: LSD, ecstasy, ketamine, cannabis.
Rules:
All of these drugs + dopamine in nucleus accumbens
Cocaine extremely effective due to route of administration and so fast onset.