Airflow Disorder Drugs Flashcards
bronchodilator drugs
- b2 adrenergic agonists
- methylxanthines
- anticholinergics
anti-inflammatory drugs
- corticosteroids
- leukotriene antagonists
- mast cell stabilizers
b2 adrenergic agonists moa
stimulates beta 2 receptors in the bronchial smooth muscle, resulting in bronchodilation
b2 adrenergic agonists indications
- control asthma
- treat bronchospasm
- prevent exercise-induced asthma
b2 adrenergic agonists caution/contraindications
-contraindicated in tachydysrhythmia
b2 adrenergic agonists adverse effects
- tremors
- cardiac stimulation
- cns stimulation (increase bp & hr)
- oral agents: tachycardia & angina
- SABA: rebound bronchospasm with overuse
SABA drugs
- rescue drugs, most effective for relief of acute bronchospasm
- can also relax other smooth muscles
- albuterol & levalbuterol
albuterol route
- inh mdi or aerosol (s.aa)
- po (long acting)
LABA
- long term maintenance/prevention of bronchospasm (not for acute sx)
- prescribed with INH corticosteroid
- given AM & PM 12 hours apart
- salmeterol & formoterol
salmeterol
- can be given alone or combined with a fluticasone as Advair
- bbw: can worsen severe asthma attacks
formoterol
given in combo with corticosteroid budesonide as Symbicort
b2 adrenergic agonists interactions
- MAOIs increase risk for hypertensive crisis
- use with b-adrenergic blockers negate effects of both medication
- thyroid hormone, caffeine, some cold products will enhance CNS stimulation
b2 adrenergic agonists implications
- use b2 agonists before corticosteroids
- follow manufacturer instructions and dose schedule
- don’t exceed prescribed dose
- observe indications of impending asthma episode
- notify hcp of increase in frequency & intensity of asthma exacerbation
- monitor breath sounds before and after admin to note effectiveness
anticholinergics moa
block muscarinic receptors of the bronchi, resulting in bronchodilation
anticholinergics indications
- relieve bronchospasm associated with COPD
- treat allergen and exercised induced bronchospasm
anticholinergics adverse effects
- dry mouth/throat
- hoarseness
- constipation
- coughing
- nasal congestion
- palpitations
- blurred vision
- urinary retention
- decreased mucus
- anxiety
anticholinergics drugs
- ipratropium
- tiotropium
ipratropium
- often given in combo with albuterol as combvient (MDI) or duoneb (nebulizer)
- dose: bid, tid, qid
- route: inhalation
- can be a rescue drug or a maintenance drug
tiotropium
- similar to ipratropium but longer duration
- once daily as a DPI
anticholinergic interactions
increase anticholinergic effects if used with other antimuscarininc agents (atropine, benztropine)
anticholinergic implications
- wait length of time between pumps
- rince mouth after inh to rid unpleasant taste
- wait 2 minutes between inh drugs
- never swallow tiotropium caps, use inh device