Pharmacology Flashcards
(228 cards)
What system that packages and store dopamine and make it ready to release?
VMAT2 (vesicular monoamine transporter 2)
How do you get rid of dopamine in the synapses?
Dopamine transport (DAT) to reuptake/COMT and MAO-B to degrade
Which dopamine pathway systems control movement? hyper function cause? hypo?
Nigrastriatal systems (between striatum and substantia nigra)/dyskinetic movement/Parkinsonism
Which dopamine pathway systems control reward and perception?hyper function cause? hypo?
Mesolimbic system (between nucleus accumbens and tagmentum)/addiction/amotivation and apathy
Which dopamine pathway systems make you alert, awake and focused? hyper function cause? hypo?
Mesocortical system (tagmentum and the front of your brain)/hypervigilance/inattention
Which dopamine pathway systems control prolactin function? hyper function cause? hypo?
Tuberoinfundibular system (hypothalamus and pituitary)/hypoprolactinemia/hyperprolactinemia
Loss of dopamine activity in what part of the brain causes ADHD?
Anterior cingulate
Block dopamine can alleviate?
Nausea
How does L-methylfolate increase the production of dopamine?
Folic acid—>MTHFR—>L-methylfolate—>cross BBB—>1 carbon cycle—>increase tyrosine—>increase dopamine
What chemical also stimulate the 1 carbon cycle?
s-adenosyl methionine
Which drug block DA and NE reuptake?
Bupropion
2 mechanism of amphetamine?
Block DAT and might reverse it/promote VMAT2—>release more DA
How does methylphenidate compare with amphetamine?
methylphenidate just blocks DAT
Example of class I and II addictive drugs?
Cocaine (illegal)/amphetamine (allowed to prescribe)
What does modafinil and armodafinil do? how does it work?
For ppl who are fatigue (class IV)/increase histamine activity in TMN/increase orexin (arousal)/might block DAT/might up NE receptor
Should you prescribe class IV drugs to ppl who has addiction problems?
No
Can modafinil and armodafinil make you loss weight?
Yes
High dose of selegiline block?
MAO A and B
What gives you HTN crisis (stroke/MI) when you are on MAOi?
NE and food with tyramine in it
What is serotonin syndrome and what causes it?
high level of 5HT—>tremor/muscle spasm/hyerthermia/delirium/coma/death
takes 5HT when you are on MAOi
What does entacapone and tolcapone treat?
Parkinson’s
What is the side effect of entacapone?
Fatigue and nausea (unusual in stimulant drugs)
Why don’t we want to use levodopa right away?
It stops working 10-20 years and give you dyskinesias
Side effect of D2 agonists?
Mania (one of them)/too happy