Autonomic Sympathetic Drugs: Indirect Sympathomimetics Flashcards

1
Q

catecholamines

A

epinephrine, norepinephrine, dopamine

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2
Q

adrenergic nerve terminal is the site of action of

A

indirect sympathomimetics

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3
Q

Site of action of indirect sympathomimetics

A

adrenergic nerve terminal

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4
Q

tyrosine is transported to

A

the vesicle containing neurotransmitters in the presynaptic nerve terminal

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5
Q

Which amino acid is a precursor to catecholamines

A

tyrosine

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6
Q

Tyrosine is converted to

A

L-DOPA

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7
Q

L-DOPA is converted to

A

dopamine

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8
Q

metyrosine prevents

A

conversion of tyrosine to L-DOPA

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9
Q

metyrosine is a

A

tyrosine analog

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10
Q

dopamine is converted to norepinephrine in the

A

vesicle containing neurotransmitters in the presynaptic neuron

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11
Q

norepinephrine transporter (NET)

A

norepinephrine transporter (NET) transports norepinephrine (and dopamine) back into the presynaptic neuron

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12
Q

dopamine transporter (DAT)

A

dopamine transporter (DAT) transports dopamine back to the presynaptic neuron

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13
Q

cocaine inhibits

A

cocaine inhibits

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14
Q

cocaine can cause

A
  1. agitation
  2. pupillary dilation
  3. hypertension
  4. tachycardia
  5. nasal mucosal atrophy or septal perforation
  6. coronary vasospasm and myocardial ischemia
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15
Q

cocaine can cause nasal mucosal atrophy or septal perforation due to

A

vasoconstriction

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16
Q

cocaine induced coronary vasospasm can cause

A

angina

17
Q

in cocaine intoxication beta-blockers can cause

A

beta-blockers can cause severe hypertension in cocaine intoxication (unopposed alpha-1 stimulation)

18
Q

NET inhibitor

A

atomoxetine

19
Q

atomoxetine treats

A

attention deficit and hyperactivity disorder (ADHD)

20
Q

________ are transported by vesicular monoamine transporter (VMAT)

A

catecholamines

21
Q

catecholamines are transported by VMAT into

A

presynaptic vesicle

22
Q

Reserpine

A

reserpine inhibits VMAT, depleting neurotransmitter stores

23
Q

Amphetamines

A

displace catecholamines (norepinephrine, dopamine) into synapse

24
Q

amphetamines can be used to treat

A

ADHD

25
Q

methylphenidate is an

A

is an amphetamine derivative

26
Q

methylphenidate treats

A

ADHD

27
Q

Treats ADHD

A
  1. methylphenidate
    2 amphetamine
  2. atomoxetine
28
Q

Modafinil is a

A

stimulant used to treat narcolepsy

29
Q

Stimulants include

A
  1. amphetamines
  2. methylphenidate
  3. modafinil
30
Q

Stimulants suppress

A

appetite

31
Q

D1 is coupled to

A

Gs

32
Q

D2 is coupled to

A

Gi

33
Q

low doses of dopamine act on D1 receptors to

A

increases renal blood flow

34
Q

medium doses of dopamine activate

A

beta-1 receptors (cardiac activation)

35
Q

high doses of dopamine activate

A

alpha-1 receptors (pressor effects)

36
Q

D2 receptors are found in the

A

CNS