tobacco and nicotine Flashcards
(20 cards)
acute effects tobacco and nicotine
cardiovascular and heart rate increase, clotting, blood vessels, stomach acid, appetite decrease
primary neurotransmitters tobacco and nicotine
binds to nicotinic cholingeric receptors and excites them
acetylcholine is main one
affects dopamine, GABA, and glutamate too
tolerance tobacco and nicotine
different speeds to different effects
not heart rate/tremor/vasoconstriction
types of tolerance tobacco and nicotine
metabolic, cellular, behavioral
rate of metabolism tobacco and nicotine
CYP450 system of liver, slower in men, very short half-life
how much nicotine in a cigar
160 mg
is nicotine toxic in a sufficient dose
one of the most toxic of all drugs, more deadly than arsenic
where does nicotine come from
found naturally only in tobacco plant, mainly the leaves
what is menthol
found in minty plants, smooth cooling sensation
is menthol more addictive
it can make smoking smoother and increase nicotine per puff which makes quitting harder, advertised to black communities
what things affect absorption of nicotine
pH, filter, volume of smoke inhaled
how is nicotine absorbed
lungs for cigarettes, mouth for pipes/cigars
what are negative effects of tobacco use
single greatest cause of premature death in the world plus cardiovascular disease and cancer
how do people quit nicotine
nicotine replacement therapies like gum, patch, vaping and pharmacological treatments that don’t replace nicotine
drugs for quitting nicotine
Bupropion, varenicline, hallucinogens
withdrawal symptoms of nicotine
concentration, headache, GI disturbance, increased appetite
how quickly is nicotine metabolized
average of 2 hours, stays in system for 1-3 days or 7-10 for heavy smokers
how quickly does tolerance develop
within days
what makes nicotine so addictive and hard to quit
drug related cues induce cravings, social environments, quickly triggers dopamine in reward pathway
smoking’s effect on adolescent brains
frontal lobe not developed yet, increases number of nicotinic receptors in reward pathway