Pharm Quiz 7 Flashcards
Diagnosis for COPD
Chronic bronchitis, Emphysema, and Forced Expiratory Volume in 1 second of less than .7
MDI
Patient must begin breathing before administration.
Only 10% reaches the lungs.
When more than 1 breathe is needed, space by 1 minute.
Spacers increase delivery and contain a whistle that alarms when inhalation is too fast decreasing drug administration and increasing risk for bronchoconstriction.
Dry-Powder Inhalers
Breath activated so do not require breath-hand coordination.
20% reaches the lungs.
Why do glucocorticoids help asthma and COPD?
Reduce bronchial hyperreactivity
Decrease mucous production
Reduce bronchial beta receptors
When are inhaled glucocorticoids used?
First-line for Persistent asthma
Exacerbations in COPD
When are oral glucocorticoids used?
Only when first-line medications do not work. Use should be as brief as possible.
Adverse effects of inhaled glucocorticoids:
Candidiasis and dysphonia
To minimize these effects gargle after every administration
Adverse effects of oral glucocorticoids:
If taken for less than 10 days, adverse effects are minimal.
Patient education Glucocorticoids
Used for preventative therapy not abortive therapy.
Use SABA before glucocorticoids
Nebulized Budesonide
For children 1-8 years old.
Improvement should begin in 2 days.
Should be tapered off after a week.
What are the preferred oral glucocorticoids?
Methylprednisolone, Prednisone ,and Prednisolone
When should Leukotriene Receptor Antagonists be given?
Second-line when an inhaled glucocorticoid cannot be used.
Or when a glucocorticoid is not sufficient.
Zileuton and Zafirlukast
Asthma prophylaxis for children 12 years and older.
Takes 1-2 hours to be effective.
Can damage the liver.
Montelukast Indications:
Maintenance therapy for children >1.
Prevention of exercise-induced asthma >15.
Allergic rhinitis.
Maximal effects develop 24h after administration
Adverse effects of Leukotriene Receptor Antagonists:
Neuropsychiatric effects –> depression and suicidal thoughts.
Cromolyn
Inhalation agent that decreases inflammation.
Used as an alternative therapy to glucocorticoids.
Especially effective for prophylactic seasonal allergy triggers.
Patient Education Cromolyn
Administer 15 minutes before working out.
Record peak expiratory flow, symptom frequency, night-time awakenings, etc.
Omalizumab MOA
Antagonizes IgE antibodies
Omalizumab Indications:
Moderate to severe asthma that is allergy related and cannot be controlled with a glucocorticoid.
Problems with Omalizumab:
BB: Anaphylaxis
Must be administered in clinic
Expensive
Causes cancer, URIs
Benralizumab, Mepolizumab, Reslizumab
Decrease eosinophils
Dupilumab
Interleukin-Receptor Alpha Antagonist
Only for patients with eosinophilic asthma or dependence on oral glucocorticoids.
Roflumilast
Phosphodieterase-4 Inhibitor only for patients with COPD with a chronic bronchitis component.
When are LABAs indicated?
First-line for COPD
Second-line for asthma and must be combined with a glucocorticoid.