stimulants Amphetamine Flashcards

1
Q

chemical name of amphetamines

A

Phenethylamine

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2
Q

what are the different kinds of Phenethylamine

A

ephedrine

amphetamines

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3
Q

what was the other name for Phenethylamine

A

ephedrine or nowadays called pseduephidrine

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4
Q

what was ephedrine used for

A

homeopathic remedy for athsma so we know breathing component

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5
Q

what does ephedrine do in the body

A

acts as a Sympathomimetic (mimics sympathetic NS)

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6
Q

what receptors does ephedrine work on and where

A

A and B2 receptors in respiratory system (psuedaephidrine targets)

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7
Q

is phenethylamine natural

A

its an alkaloid with botanical origin

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8
Q

3 things ephedrine does as a sympathomimetic

A
  1. vasoconstriction
  2. relax smooth muscle
  3. parasympathetic agonist
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9
Q

on ephedrine what happens to blood pressure

A

increase by shrinking blood vessels

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10
Q

what are the impacts of ephedrine being a vasoconstrictor

A

Decrease inflammation, increase fluid retention

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11
Q

how does vasoconstriction aid the common cold

A

blood doesn’t move as quickly so liquids stay in place , mucis stays put= decongestant

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12
Q

opening up the airways is the product of which effect of ephedrine sympathomimetic properties (athsma cure)

A

relaxing smooth muscle = bronchial dialation

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13
Q

ephedrine has …. effects due to its ability to antagonize the parasympathetic NS

A

anoretic = weight loss through surpassing appetite

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14
Q

is ephedrine used for weight loss

A

no

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15
Q

how does ephedrine aid Priapism

A

relax smooth muscle

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16
Q

T: intended to prevent disease.

A

prophylactic

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17
Q

how do decongestants have a night version if its a sympathomimetic

A
can cause anxiety 
add antihistamine (adding a stimulant and a dissociative)
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18
Q

what is phelylephrine used for? is it helpful when added to decongestants?

A

no has to be used topically (if applied to sinus)

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19
Q

what the street name for amphetamines

A

speed

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20
Q

what does it mean to say ampet is synthesized

A

?

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21
Q

what is the usual route of admin for amphetamines

A

oral

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22
Q

2 types of amphetamines

A

Benzedrine, Methylated Amphetamine

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23
Q

street names for benzidrine

A

white cross, bennies

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24
Q

what were benzedrines 2 uses

A

decongestant and appetite suppressant (sympathomimetic)

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25
what is the other name for Methylated Amphetamine
methampletamine
26
what are the 4 street names for meth
crank, ice, crystal, meth (it was leaked early= street use)
27
why were they looking at methylated versions of amphetamines
they got through they blood brain barrier much easier
28
street names for amphetamines used for ADHD 4
black beauty, Cadillac, dexies, vitamin R
29
what are the two different names for L and R turning molecules
``` dex= right Levo = left ```
30
how does the way the molecule turns effect potency and effects
``` r = higher binding affinity but less potent l = more potent but harder time saturating receptors ```
31
where are L turning usually found
body
32
where are R turning usually found
in brain
33
levo is more effective because its more potent
f don't stick
34
amphetamines binds to receptors but what do they do there? 2
leaky vesicles | block reuptake molecules
35
what does it mean that amphetamines causes leaky vesicles
packages of NT breaker open= free floating NT in buton= more easy to get to cleft
36
what NT does amphet target
Norepinephrine (x9 main target), Dopamine, Serotonin negligible
37
what was the problem with the mechanism of action of amphet
increasing dosages create agonistic effects with 5-HT
38
T: central nervous system deficiency of indoleaminergic transmission, while not sufficient to cause an affective disorder, must be present for such a disorder to occur.
permissive hypothesis
39
increasing dosages create agonistic effects with 5-HT related to the permissive hypothesis which states
low ser causes low nonep and dopamine
40
2 main effects amphet has on mechanisms of action
1. Leaky vesicles, reuptake inhibitor | 2. Inhibit monoamine oxidase (MAO)
41
what does MAO monoamine oxidase do?
enzyme that has many functions in body | inhibit the activity of one or both monoamine oxidase enzymes
42
what does inhibiting MAO do
more nonep and dopamine in body = acted as antidepressants
43
why do people feel happy on amphet? does it change mood?
increased dopamine and nonep
44
what does MAO break down
non ep dopamine serotonin breaks down a bunch of shit
45
what was the mechanism of action in the methylated amphet
instead of just stopping the reuptake inhibitor? reverse it. took free floating NT from button and pumped it out
46
what does the methylated version do to transcription factors
trigger them
47
T: proteins involved in the process of converting, or transcribing, DNA into RNA.
transcription factor
48
methylated version was ... to dopamine and serotonin receptors
neurotoxic
49
what was methylated versions Neurotoxic to ? 2
DA & 5-HT
50
what kind of neurotoxicity did methylated version cause and why
Exitotoxcity: going at receptors so fast triggered apoptosis (cell death)
51
do methylated versions do all the same things as regular amphet
yes but more
52
Da and 5 HT are along for the ride in regular amphet but in meth what happens to these 2
removed from system to focus on nonep
53
the tolerance mechanisms of aphet are what kind of tolerance
Tachyphylaxis
54
why can we consider it Tachyphylaxis
rapid up and down regulation within a few hours tolerance occurs
55
in the 15-day residential study (3 day quadrants ofdrug vs placebo) Days 4-6, 10-12 received meth (1-3, 5-9 placebos) how did they feel on days 4 and 10
exhilarated and happy
56
in the 15-day residential study (3 day quadrants ofdrug vs placebo) Days 4-6, 10-12 received meth (1-3, 5-9 placebos) how did they feel on days 6 and 12
flu like symptoms and not feeling well but felt better on next hit
57
Results: reported positive effects on day 4/10, flulike symptoms on 6/12 day. Sleep disrupted and food intake decreased. what does this tell us about amphet tolerance
rapid up and down regulation of receptors in the system rapid tolerance then rapid rehomeostatic principles
58
what does dependance look like for aphet
Psychological (“craving”)
59
how does dependance of cocaine compare to ampet
not as rapid and intense of depression in amphet
60
why do people who take workout supplements say they can't workout without them
dependance
61
what does the Psychological “craving” (depedence) of amphet look like behaviourally
Depression, anxiety, sleep disturbances
62
what does depednace look like in meth
“wanting”
63
the “wanting” of meth is the result of what changes in body
Meth associated with allostatic/degenerative changes = physiological component = much for dangerous
64
the pathological process by which neurons are damaged and killed by the overactivations of receptors for the excitatory neurotransmitter glutamate :T
excitotoxicity
65
withdrawal only happens in methylated amphet
f in all cases (meth has more pronounced features)
66
difference between dysthymia and depression?
depressed mood vs depression
67
what do people feel when they are withdrawing from amphet
Lethargy, dysthymia (depressed mood)= body | meth it may be due to brain injury =brain
68
the Lethargy, dysthymia (depressed mood) is due to what NT
seretonin
69
what are the 3 factors of amphet psychosis
tweaking delusions/ hallucinations panic paranoia
70
T: perceiving bugs crawling under the skin
formication (panic parania)
71
what are 2 behaviours that result from panic paranoia of amphet psychosis
– Formication: perceiving bugs crawling under the skin | – Compulsive/Repetitive behaviours to trivial aspects of life
72
the compulsive behaviours in panic resemble OCD
f not OCD-like there is no "because". its just jitters
73
what causes the Wild/bizarre delusions, hallucinations in anphet psychosis
Dopamine release in limbic system
74
the Wild/bizarre delusions, hallucinations are similar to ...
paranoid schiz
75
T: Irritability, paranoia, violent behaviour
tweaking
76
what function of amphet causes tweaking
sleep deprivation or monoamine deficiency
77
Lethargy, dysthymia is apart of amphet psychosis
f mechanism inducing more amphet use