Beta receptor blockers/ agonists Flashcards

1
Q

Propranolol

A

non-selective B-blocker

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

2) ↓ gluconeogenesis via 2 blockade in liver
3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds
* renal excretion

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2
Q

Propranolol

A

non-selective B-blocker

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

2) ↓ gluconeogenesis via 2 blockade in liver
3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds

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3
Q

Nadolol

A

non-selective B-blocker
-24 hr half-life; long term BP control

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

2) ↓ gluconeogenesis via 2 blockade in liver
3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds

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4
Q

Timolol

A

non-selective B-blocker

Topical: glaucoma (2 block in eye ↓ aqueous humor prod.)

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5
Q

Nadolol

A

non-selective B-blocker
-24 hr half-life; long term BP control

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

2) ↓ gluconeogenesis via 2 blockade in liver
3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds
* renal excretion

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6
Q

Timolol

A

non-selective B-blocker

Topical: glaucoma (2 block in eye ↓ aqueous humor prod.)

*renal excretion

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7
Q

Metoprolol

A

selective B1 blocker

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds
* metabolized by liver

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8
Q

Atenolol

A

selective B1 blocker

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds
* metabolized by liver

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9
Q

Acebutolol

A

selective B1 blocker

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds
* metabolized by liver

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10
Q

Esmolol

A

selective B1 blocker

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds
* metabolized by liver

**rapid plasma esterase inactivation

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11
Q

Acebutolol

A

selective B1 blocker/ partial beta agonist
**Increased antihypertensive effects: partial B2 stimulation—> vasodilation and decreased TPR

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds
* metabolized by liver

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12
Q

Esmolol

A

selective B1 blocker

Indications:

  • Angina
  • MI
  • SVT
  • HTN
  • CHF
  • Glaucoma

Toxicity:
1) Masks symptom of hypoglycemia!

3) Insulin resistance
4) Abnormal lipid profile
5) Aggravation of Raynauds
* metabolized by liver

**rapid plasma esterase inactivation

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13
Q

Pindolol

A

B1 blocker/ partial B agonist

-enhanced antihypertensive effects: partial B2 stimulation—> vasodilation and decreased TPR

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14
Q

Pindolol

A

B1 blocker/ partial B agonist

-enhanced antihypertensive effects: partial B2 stimulation—> vasodilation and decreased TPR

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15
Q

Labetalol

A

combined alpha/beta blocker

Indications:

  • Hypertensive emergencies (IV)
  • moderate/severe HTN
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16
Q

Nebivolol

A

alpha/beta blockade + NO induced vasodilation

Indications:

  • Hypertensive emergencies (IV)
  • moderate/severe HTN
17
Q

Carvedilol

A

alpha/beta blockade + antioxidant

Indications:

  • Hypertensive emergencies (IV)
  • moderate/severe HTN
18
Q

Dobutamine

A

B1 agonist

  • highly cardioselective
  • strong inotrope

Indications (parenteral):

1) short term tx of heart failure or cardiogenic shock
2) Cardiac stress test
3) Cardiac stimulation emerging from sx

Toxicity:
Tachycardia
Tachyarrhythmia

19
Q

Pirbuterol (Maxair)

A

2 agonist

-selectivity for bronchial SM

20
Q

Albuterol (Proventil)

A

2 agonist

-selectivity for bronchial SM

21
Q

Salmeterol (Severent)

A

2 agonist

-selectivity for bronchial SM

22
Q

Terbutaline (Brethine)

A

2 agonist

-uterine SM

23
Q

Pirbuterol (Maxair)

A

2 agonist
-selectivity for bronchial SM

*rescue inhaler in asthma

24
Q

Albuterol (Proventil)

A

2 agonist
-selectivity for bronchial SM

*rescue inhaler in asthma

25
Q

Salmeterol (Severent)

A

2 agonist

  • selectivity for bronchial SM
  • long half-life

*rescue inhaler in asthma

26
Q

Terbutaline (Brethine)

A

2 agonist
-uterine SM

  • indicated to delay premature labor
    • B2 agonist in uterus—> increase cAMP—->SM relaxation