Sympathomimetics ANS Flashcards

1
Q

What is a catecholamine And what metabolize it

A

A Dihydroxyphenylethylamine derivative 
Chatachol-O-methyltransferase

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2
Q

Name an alpha Agonist That causes mydriasis

A

Phenylephrine

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3
Q

Which Beta agonists drugs are used for reversing bronchospasm

A

Albuterol
isoproterenol
Metaproteranol
Terbutaline

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4
Q

Which type of receptor agonist decreases salt and water secretion into the intestine

A

Alpha two

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5
Q

What are the effects of alpha-one agonists on vascular system

A
  1. Contract vascular smooth muscle
  2. Increase peripheral vascular resistance
  3. Venous pressure
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6
Q

Name alpha-2 agonist effect on vascular system

A

Vasoconstriction

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7
Q

What are the effects of beta - 2 Agonists on the vascular system

A
  1. Reduce arterial tone in skeletal muscle vascular beds 
  2. Reduce Vascular resistance and arterial blood pressure
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8
Q

What are the effects of dopamine on the vascular system

A

Vasodilation in splenic and Renal vascular beds by activating D1 receptors

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9
Q

What is the effect of a pure alpha agonist on heart rate

A

Routinely slows heart rate via baroreceptor reflex

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10
Q

What are the effects of pure beta agonist on heart rate

A

Almost always increases heart rate

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11
Q

Which Adrenoceptor has the greatest effect on vascular resistance

A

Alpha and beta two

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12
Q

Which receptor influences pulse pressure

A

Beta one

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13
Q

Which type of Agonist increases renin secretion 

A

Beta one agonist

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14
Q

Which agonist increases insulin secretion

A

Beta two 

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15
Q

What is the drug of choice for immediate treatment of anaphylactic shock

A

Epinephrine 

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16
Q

Which drugs are used in ADHD

A
  1. Methylphenidate
  2. Amphetamine
  3. methamphetamine
17
Q

Name two alpha agonists used in the eye to reduce conjunctive itching and irritation

A

Tetrahydrozoline
Phenylephrine 

18
Q

Name two alpha-2 agonist used in glaucoma

A

Apraclonidine
Brimonidine

19
Q

Name a drug that can be used for AV block

A

Isoproterenol

20
Q

Name direct acting catecholamines

A
  1. Epinephrine
  2. Norepinephrine
  3. dopamine
  4. isoproterenol
  5. Dobutamine
21
Q

Name non-catecholamine alpha selective agonists

A

Phenylephrine
Methoxamine
Clonidine

22
Q

Name non-catecholamines beta 2 selective agonist

A
  1. Albuterol
  2. terbutaline
  3. metaproterenol
  4. Salmeterol
  5. Formoterol
  6. Indacaterol
  7. Vilanterol
  8. Olodaterol
23
Q

Name indirect acting phenylisoproplamines agonists

A
  1. Amphetamine
  2. methamphetamine
  3. ephedrine
24
Q

What is the effect of adrenaline an anaphylactic shock

A
  1. Cardiac stimulation
  2. increased blood pressure
  3. increased peripheral resistance
  4. decreased mucosal edema
  5. decrease release of mediators from mast cells
  6. antagonist of histamine
25
What are the therapeutic uses of beta two selective Agonists
1. Bronchial asthma 2. delay premature labour 3. hyperkalaemia
26
Name the drug Whose main action is on the uterus and prevents premature labour
Ritodrine 
27
What are the adverse effects of using beta two agonists 
1. Tremor 2. Tachycardia 3. hyperglycaemia 4. hypokalaemia
28
Name nasal decongestants 
1. Naphazoline 2. Oxymetazoline 3. Xylometazoline 4. Pseudoephedrine 5. Phenylephrine
29
Name selective alpha-2 agonist
1. Clonidine 2. alpha methyldopa 3. tizanidine 4. Apraclonidine 5. Brimonidine
30
How do you treat acute intoxication of amphetamine
1. Ascorbic acid to promote excretion 2. sedatives to control CNS symptoms 3. sodium nitroprusside for hypertension
31
What are the uses of amphetamine
1. Narcolepsy 2. ADHD 3. anorexiant 
32
Which drug causes increased GFR
Dopamine
33
What is the function of Fenoldopam
D1 agonist  used in hypertensive emergencies (decreases BP)
34
Name anorectics (anorexiants)
1. Mazindol 2. Phentermine 3. Sibutramine 4. Orlistat
35
Which drug is able to block reflex bradycardia from alpha-1 agonist
Atropine
36
What are the contraindications of using Parasympathomimetics
1. COPD 2. patients with cardiac disease 3. narrow angle glaucoma