• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/37

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

37 Cards in this Set

  • Front
  • Back
Are H1 blockers reversible or irreversible inhibitors of H1 histamine receptors?
Reversible
3 first generation H1 blockers
Diphenhydramine, dimenhydrinate, chlorpheniramine
3 second generation H1 blockers
Loratadine, fexofenadine, desloratadine, cetirizine
Clinical uses of 1st generation H1 blockers
Allergy
Motion sickness
Sleep aid
Clinical uses of 2nd generation H1 blockers
Allergy
Why are 2nd generation H1 blockers less sedating?
Decreased entry into the CNS
This drug blocks both H1 and H2 receptors; used for anaphylactic reactions (and as an antidepressant)
Doxepin
Bronchoconstriction is mediated by two things
Inflammatory processes
Sympathetic tone
6 types of asthma drugs
Beta-agonist (nonspecific and beta-2s)
Methylxanthines
Muscarinic antagonists
Cromolyn sodium
Corticosteroids
Antileukotrienes
Which nonspecific beta agonist is used is asthma?
Isoproterenol
Adverse effect of isoproterenol
Tachycardia
Two beta-2 agonists used in asthma
Albuterol and salmeterol
Which beta-2 agonist is used for acute asthma exacerbations?
Albuterol
Which beta-2 agonist is used as a long-acting agent for prophylaxis
Salmeterol
Adverse effects of salmeterol (2)
Tremor
Arrhythmias
Example of a methylxanthines
Theophylline
Mechanism of theyphylline-induced bronchodilation?
Inhibits phosphodiesterase --> decreases cAMP hydrolysis
2 serious toxicitis of theophylline
Cardiotoxicity
Neurotoxicity
Theophylline blocks action of?
Adenosine (antiarrhythmic that increases K+ efflux)
Theophylline cardiotoxicity is treated with?
Beta blockers
Muscarinic antagonists used in asthma
Ipratropium
Ipratropium is also used for
COPD
Mechanism of cromolyn sodium
Prevents release of mediators from mast cells
Is cromolyn sodium used for prophylaxis or treatment of asthma?
Prophylaxis (not effective during an acute attack)
1st line therapy for chronic asthma
Corticosteroids
2 corticosteroids used in asthma
Beclomethasone
Prednisone
2 mechanisms of corticosteroids in asthma
Inhibit synthesis of cytokines
Inactivate NF-kappa beta, the TF that induces production of TNF-alpha
3 antileukotrienes used in asthma
Zileuton, zafirlukast, montelukast
Mechanism of zileuton
5-liposygenase pathway inhibitor (Blocks conversion of arachidonic acid to leukotrienes)
Mechanism of zafirlukast and montelukast
Block leukotriene receptors
Best treatment for aspirin-induced asthma
Zafirlukast, montelukast
2 expectorants
Guaifenesin
N-acetylcysteine
Mechanism of guaifenesin
Removes excess sputum (doesn't suppress cough reflex)
N-acetylcysteine has 2 clinical uses
Expectorant/ mucolytic
Antidote for acetaminophen toxicity
N-acetylcysteine is used as an expectorant in which pts
CF patients (can loosen mucous plugs)
Bosentan is used to treat
Pulmonary hypertension
Mechanism of bosentan
Competitive antagonist of endothelin-1 receptors --> decreases pulmonary vascular resistance