Asthma & COPD Flashcards
definitions of asthma?
- chronic inflammation of the airways
- recurrent episodes of wheezing, breathlessness, chest tightness, coughing
- variable airway obstruction that is often completely reversible
Define COPD
- persistent airway limitation
- progressive (not fully reversible)
- enhanced chronic inflammatory response in the airways and the lungs to noxious particles and gases
what are the 4 major bronchodilators?
- inhaled short-acting beta 2 agonist
2. inhaled long-acting beta 2 agonist
what is the hallmark of asthma?
hyper reactive airway
what T lymphocytes are involved in asthma?
TH2 with excess eosinophil (normal neutrophils)
what T lymphocytes are involved in COPD?
TH1 with excess neutrophils (normal eosinophil)
what are the 4 types of bronchodilators for asthma?
- inhaled short-acting beta 2 agonist
- inhaled long-acting beta 2 agonist
- inhaled anticholinergic
- theophylline
what are the 4 types of anti inflammatory agents for asthma?
- inhaled corticosteroids
- antileukotrienes
- cromones
- anti-immunoglobulin E
what are the 2 asthma drugs that are inhaled short acting beta 2 agonist?
- albuterol
2. terbutaline
what are the 2 asthma drugs that are inhaled long-acting beta 2 agonists?
- salmeterol
2. formoterol
what are the 2 inhaled anticholinergic?
- iprotropium
2. tiotropium
slow-release theophylline and aminophylline
theophylline
what are the inhaled corticosteroids?
- budesonide
- fluticasone
- beclomethasone
- mometasone
names of antileukotrienes?
- montelukast
- zafirlukast
- zileuton
when prescribing long acting beta 2 for asthma, what do you also need to give?
inhaled corticosteroids
what are the names of cromones?
sodium cromglycate and nedocromil
what is the name of the anti-immunoglobulin E?
omalizumab
what is the R isomer of albuterol?
levalbuterol
what is methylxanthines?
weak bronchodilator –> theophylline, theobromine, and caffein
what are the mech of methylxanthines (theophylline)?
non selective phosphodiesterase inhibitors (PDE) bronchodilation
what is the selective PDE4 inhibitor?
roflumilast
characteristics of Roflumilast (PDE4 inhibitor)?
More of an anti-inflammatory agent
◦ Prevents neutrophil migration by inhibiting PDE4 isoforms
Improvement in lung function is secondary to antiinflammatory
action rather than bronchodilation (very
weak)
Clinical use approved in COPD.
what are the major side effects of methylxanthine (theophylline)
- cardiac arrythmia
- seizure
- anorexia, nausea, headahce, insomnia, GERD
what is the cornerstone treatment for persistent asthma?
corticosteroid