Asthma/COPD Flashcards
Steroids (inhaled, systemic)
Leukotrine modifying agents
Roflumilast
Anti inflammatory agents
Beta 2 agonists
MOA
Act like NE and E at B2 receptors- bind and cause smooth muscle relaxation and mast cell stabalization
-useful in asthma and copd
Beta 2 agonists
AEs
Skeletal muscle tremor Tachycardia Nervousness Hypokalemia MDI: dry mouth, cough
Beta 2 agonists
Available agents
Short acting: fast onset/short duration
-used for acute attack
Long acting: slow onset/long duration
- not used as rescue therapy
- longer half life
- preventative
B2 agonists
Anticholinergic agents
Theophylline
Bronchodilators
Long acting beta agonists
LABAs
Warnings/recommendations
- increase/worsening of increased risk of asthma related deaths for PTs using labas for asthma treatment
- use only when paired with a glucocorticoid
- use for a shortest duration possible
- use in combo product to increase compliance
- desensitize beta 2 receptors; steroids help lessen the desensitizing of the receptors
Albuterol (vetolin, Proventil): PO, MDI, neb
Lavalbuterol (xopenex): MDI, neb
Metaproterenol (alupent, metaprel):PO, neb
Pirbuterol (max air): autohaler
Terbutaline (brethine): PO, IV
Fenoterol (duovent): only available in combo with ipatropium
Short acting beta 2 agonists
SABAs
Salmeterol (servent): diskus
Formoterol (foradil): aerolizer
Arfomoterol (brovana): Neb
Indacaterol( arcapta): powder for inhalant
Olodaterol (striverdi respimat): MDI
Vilanterol (breo ellipta, anoro ellipta): powder for inh- only available in combo with fluticasone or umeclidium
Long acting beta 2 agonists
LABAs
Inhaled have beta 2 agonists
Have a low risk of AEs
Systemic beta 2 agonists
Have a a higher risk of AEs
Anticholinergic agents
MOA
Inhibit the Ach effects on bronchial smooth muscle
- use in asthma limited to acute attacks
- technique is very important for use
Aclidinium (Tudorza press air): powder for inh
Ipratopium (atrovent HFA): MDI, neb, nasal spray
Umeclidium + vilantrerol (anoro ellipta)
Ipratopium + albuterol (combivent):MDI
Ipratopium + fenoterol (duovent)
Tiotoprium (spriva handihaler): oral inhalation
Glycopyrrolate + indacaterol(utibron): powder for inh
Anticholinergic agents (inhaled)
Anticholinergic agent
AEs
Dry mouth Constipation Urinary hesitancy Tachycardia (Anti slud)
Theophylline
MOA
Bronchodilation
Stimulates respiratory center
Augments diaphragm contractility
Theophylline
AE/risks
Not commonly used/last resort
*Narrow therapeutic index: effectiveness and toxicity is very close together (high variability)
Dosing varies by population: smokers(metabolized faster), elderly, children
*monitor closely
Tachycardia, GI upset, nervousness, sleep disturbances
Toxicity: N/V, PVC, seizures, arrhythmia
Corticosteroids
Anti inflammatory agent
MOA
Anti inflammatory
Inhibit. Migration of inflammatory cells
Inhibit mucus production
Improve response to b2 stimulation
Formulations: systemic, inhaled (topical)
Corticosteroids
AEs
Systemic effects
Acute: fluid retention, mood changes, sleep disturbances, increased appetite, hypokalemia, hypoglycemia
Chronic: *growth suppression, cataracts, osteoporosis, HTN, HPA axis suppression
Inhaled: oral candidiasis, dysphonia, brush teeth, rinse mouth
Fluticasone (Flovent): MDI Budensonide (pulmicort): turbohaler, neb Triamcinolone (azmacort): MDI Beclomethasone (beclovent, Qvar): MDI Flunisolide (aero-bid): MDI Ciclesonide (alvesco): MDI
Inhaled corticosteroids
Leukotriene modifying agents
Anti inflammatory
MOA
Reduce inflammation and bronchoconstriction caused by leukotrienes Receptor antagonism (zafirlukast, montelukast) Inhibition of 5-lipoxygenase pathway (Zileuton)
Zafirlukast (accolate)
Montelukast (singulair)
Zileuton (zyflo)
Leukotriene modifiers
Zafirlukast (accolate)
LTD4 antagonist: block LTD4 from binding to its receptor
-important drug inx concerns
AE: GI upset, increased LFTs, suicide risk, anxiety, nightmares, aggression, depression
Montelukast (singulair)
LTD4 antagonist: blocks LYD4 from binding to its receptor
No significant drug inx
AE: GI upset, suicide risk, nightmare, aggression, anxiety, depression
Zileuton (zyflo)
Leukotriene modifier
5-lip oxygenase inhibitor
AE: GI upset, increased LFTs, low WBC, weakness, conjunctivitis, suicide risk, anxiety, nightmares, depression, aggression
liver damage**
Omalizumab (Xolair)
Other anti inflammatory
Biologic agent: monoclonal antibody
-injectable
*Used to treat severe allergic rxn asthma
-binds to free igE to mast cells and basophils and promotes release of inflammatory mediators
Only approved for PTs under 12 with positive skin prick test
Omalizumab (Xolair)
Other anti inflammatory
AE
Anaphylaxis-with in 2 hrs of dose Injection sure rxn (pain, red, itching) Rash Headache -500$ a vial(expensive)
Roflimilast (dailyresp)
Other
Tx for COPD only
MOA
PDE4 inhibitor (lungs)- increase cAMP
Decreases inflammatory response
Not for treating acute bronchospasms
PO-1x daily
Roflumilast (daliresp)
AE
Weight loss (5-10% loss in 1 year)
Psychiatric AE: insomnia, anxiety, depression
Diarrhea
Drug inx risks