Drug dependence Flashcards
psychoactive drugs
drugs that can alter our consciousness and perceptions
what are the 4 main categories of psychoactive drugs
depressants
stimulants
hallucinogens
opioids
depressants
drugs that lower body’s basic functions and neural activity. decrease HR, BP, processing/reaction time
3 categories of depressants
alcohol
barbiturates
benzodiazepines
moat popular depressant is
alcohol
depressants vasodilate at
low
depressants vasoconstrict at
high
alcohol
decreased inhibitions and cognitive control
lack of coordination, slurring of speech
barbiturates
to induce sleep and reduce anxiety
depress cns
anesthesia and anticonvulsants
benzodiazepines
sleep aids, anti-convulsants/anxeity
enhance brain’s response to GABA
zelam/zolam
stimulants
drugs that excite cns
increase hr/bp, alertness
caffeine, amphetamine, methamphetamine, MDMA, cocaine, nicotine
the effect of stimulants is
increased glucose metabolism in brain
hallucinogens/psychedelics
distorted perceptions/hallucinations. seeing or hearing things different from what they truly are
mescaline, psilocybin, peyote
Opioids/opiates
opiates - natural
opioids - synthetic
decreased ins, hr, bp
sleep and relaxation
analgesic (reduce perception of pain)
overdose leads to respiratory failure
alcohol is absorbed through
cell membrane