Pharmacology: Drugs Affecting the Nervous System Quiz
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Questions and Answers

What is clonidine primarily used for?

  • Treatment of opiate withdrawal symptoms
  • Treatment of acute asthma symptoms
  • Management of premature labor
  • Treatment of hypertension (correct)

Which side effect is commonly associated with both clonidine and methyldopa?

  • Tremor
  • Arrhythmia
  • Constipation (correct)
  • Restlessness

What is the main purpose of using Albuterol and terbutaline?

  • Management of acute asthma symptoms (correct)
  • Treatment of hypertension
  • Treatment of opiate withdrawal symptoms
  • Uterine relaxation

Which side effect is common to both Albuterol and terbutaline when administered orally?

<p>Arrhythmia (B)</p> Signup and view all the answers

What do indirect-acting adrenergic agonists do?

<p>Inhibit the reuptake of epinephrine or norepinephrine (B)</p> Signup and view all the answers

What is a common misconception about amphetamine according to the text?

<p>Its only action is central stimulatory (C)</p> Signup and view all the answers

What term is used to describe adrenergic drugs that activate adrenergic receptors?

<p>Sympathomimetics (C)</p> Signup and view all the answers

Which neurotransmitter is primarily released by adrenergic neurons?

<p>Norepinephrine (C)</p> Signup and view all the answers

What type of drugs block the activation of adrenergic receptors?

<p>Sympatholytics (B)</p> Signup and view all the answers

Which direct-acting adrenergic agonist interacts with both α and β receptors?

<p>Epinephrine (A)</p> Signup and view all the answers

At low doses, what effects predominate in the vascular system due to epinephrine?

<p>Vasodilation (B)</p> Signup and view all the answers

What effect does epinephrine have on the contractility of the myocardium?

<p>Strengthens (D)</p> Signup and view all the answers

Which effect does cocaine have on the blood pressure?

<p>Increases blood pressure by α1 agonist action on the vasculature (B)</p> Signup and view all the answers

Why does norepinephrine accumulate in the synaptic space with cocaine use?

<p>Due to blocking of norepinephrine reuptake transporters (A)</p> Signup and view all the answers

How do α adrenergic blocking agents affect blood pressure?

<p>Decrease peripheral vascular resistance (C)</p> Signup and view all the answers

Which of the following is true about Tamsulosin's effect on blood pressure?

<p>It has the least effect on blood pressure due to its selectivity for α1A receptors in the prostate and bladder (D)</p> Signup and view all the answers

How do catecholamines produce magnified effects with cocaine use?

<p>By enhancing sympathetic activity due to norepinephrine accumulation in the synaptic space (D)</p> Signup and view all the answers

What is the primary difference between prazosin, doxazosin, and tamsulosin in terms of their selectivity?

<p>Prazosin and doxazosin are more selective for α1B receptors, while tamsulosin is more selective for α1A receptors (D)</p> Signup and view all the answers

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