Agonists: mimic neurotransmitters
Antagonists: inhibit/block neurotransmitters
Reuptake: reduces the effect of neurotransmitters by recycling/reabsorbing them
Reuptake inhibitor: agonistic (increase the effect of neurotransmitter)
SSRI: major anti-depressant medication; selective serotonin reuptake inhibitor
Dependence = addiction
Tolerance: needs larger amount of substance to reach the same effect
Withdrawal symptoms: craving for the substance; opposite of drug's effect
Depressants: Alcohol; sedatives, tranquilizers; opiates/narcotics (morphine, heroin)
Stimulant: Nicotine (cigarettes); caffeine; meth; cocaine
Hallucinogens: marijuana, LSD