Use of Medications in Asthma Cyril Grum, M.D. Department of Internal Medicine *Based on the University of Michigan Guidelines for Clinic Care and the National Asthma Education and Prevention Progam (NAEPP) 2002 Update Recommended therapies are based on clinical severity • See Powerpoint presentation on “Diagnosing and Staging Asthma” for background Regimens for long-term control of asthma Children 5 years and under-1 • Step 1 (mild, intermittent) – No daily medications indicated • Step 2 (mild, persistent) – Preferred treatment: Low-dose inhaled corticosteroids (with nebulizer or MDI with holding chamber with or without face mask or DPI). – Alternative treatment (listed alphabetically): • Cromolyn (nebulizer is preferred or MDI with holding chamber) • Leukotriene receptor antagonist. Children 5 years and under-2 • Step 3 (moderate persistent) – Preferred treatments: • Low-dose inhaled corticosteroids AND long-acting inhaled • b2-agonists Medium-dose inhaled corticosteroids. – Alternative treatment: • Low-dose inhaled corticosteroids AND either leukotriene receptor antagonist or theophylline. – In patients with recurring severe exacerbations: • Medium-dose inhaled corticosteroids AND – long-acting b2-agonists (preferred), OR – leukotriene receptor antagonist (alternate) OR – theophylline (alternate) Children 5 years and under-3 • Step 4 (severe, persistent), preferred treatment: – High-dose inhaled corticosteroids PLUS – Long-acting inhaled b2-agonists AND if needed, – Corticosteroid tablets or syrup long term (2 mg/kg/day, but not >60 mg/day, with repeat attempts to reduce systemic corticosteroids Adults and Children >5 years - 1 • Step 1 (mild, intermittent) – No medications are recommended – If severe exacerbations occur infrequently, separated by asymptomatic intervals --> oral corticosteroids • Step 2 (mild, persistent) – Preferred treatment: Low-dose inhaled corticosteroids. – Alternative treatments (listed alphabetically) • cromolyn or nedocromil, OR • leukotriene modifier, OR • sustained release theophylline to serum conc. of 5–15 mcg/mL. Adults and Children >5 years - 2 • Step 3 (moderate, persistent) – Preferred treatment: • Low-to-medium dose inhaled corticosteroids AND long-acting inhaled b2-agonists – Alternative treatments (listed alphabetically): • Increase inhaled corticosteroids within medium-dose range • Low-to-medium dose inhaled corticosteroids AND either leukotriene modifier OR theophylline. – In patients with recurring severe exacerbations: • • • • Add long-acting b2-agonists (preferred), OR Increase inhaled corticosteroid to medium-dose range (alternate), OR leukotriene receptor antagonist (alternate) OR theophylline (alternate) Adults and Children >5 years - 3 • Step 4 (severe, persistent) – High-dose inhaled corticosteroids AND – Long-acting inhaled b2-agonists AND (if needed) – Oral corticosteroids 2 mg/kg/day, up to 60 mg per day, with repeated attempts to reduce systemic corticosteroids. Medications and dosing: selected corticosteroid inhalers Medication Adult doses Pediatric doses Budesonide (Pulmocort®) 200mcg/inhalation Administered bid Low 200-600 Medium 600-1200 High >1200 Low 200-400 Medium 400-800 High >800 Triamcinolone (Azmacort®) 100mcg/inhalation Administered bid-qid Low 400-1000 Medium 1000-2000 High >2000 Low 400-800 Medium 800-1200 High >1200 Fluticasone (Flovent®) 44, 110 or 220mcg/puff Administered bid Low 88-264 Medium 264-660 High >660 Low 88-176 Medium 176-440 High >440 Salmeterol/fluticasone Advair Diskus ®) Low 100/50 1 puff bid Medium 250/50 1 puff bid High 500/50 1 puff bid Low 1 puff bid Medium 1 puff bid High 1 puff bid Medications and dosing: Bronchodilators and mast cell stabilizers Medication Adult doses Pediatric doses Albuterol 90mcg/puff (Proventil®, Ventolin ®) 2 puffs tid-qid 2 puffs tid-qid Pirbuterol 200mcg/puff (Maxair Autoinhaler®) 2 puffs tid-qid 2 puffs tid-qid Salmeterol 50mcg/dose (Serevent Diskus®) 1 blister bid 1 blister bid Cromolyn sodium 800mcg/puff (Intal®) 2-4 puffs tid-qid 1-2 puffs tid-qid Nedocromil sodium 1750mcg/puff (Tilade ®) 2-4 puffs tid-qid 1-2 puffs tid-qid Medications and dosing: Oral medications Medication Adult doses Pediatric doses Zafirlukast (Accolate ®) 20 mg bid 10 mg bid Montelukast (Singulair®) 10 mg q hs age 6-14: 5 mg hs age 2-5: 4 mg hs age 12-23 mo: 4 mg hs (oral granules) Theophylline 300mg bid Starting dose:10mg/kg/day; usual max: >1 year of age: 16 mg/kg/day < 1 yr: 0.2 (age in weeks) + 5 = mg/kg/day Regimens for quick relief of acute symptoms Quick relief of acute symptoms in children age 5 and under • Bronchodilator prn. Intensity of rx depends on severity. – Preferred rx: Short-acting, inhaled b2-agonist, by nebulizer or face mask and space/holding chamber – Alternative rx: Oral b2-agonist • With viral respiratory infection – Bronchodilator q4–6 hours up to 24 hours (longer with physician consult); do not repeat < q6 weeks – Consider systemic corticosteroid if severe or patient has hx of previous severe exacerbations Quick relief of acute symptoms in adults and children > age 5 • Short-acting bronchodilator: 2–4 puffs short- • • acting inhaled b2-agonists as needed for symptoms. Intensity of treatment depends on severity; up to 3 treatments at 20-minute intervals or a single nebulizer treatment as needed. A course of systemic corticosteroids may be needed. A note on intensity of treatment for acute symptoms in all age groups • Excessive use of short-acting b2-agonists may • indicate a need to increase long-term-control therapy Defined as: – >2 times a week in intermittent asthma – daily or increasingly in persistent asthma Emergency room or in-hospital treatment Drug Adult dose Nebulized albuterol 2.5–5 mg q20 mins x3 doses, then 2.5–10 mg q14hr prn, or 10–15 mg/hr continuously Albuterol MDI (90 mcg/puff) Nebulized ipratropium Br (with albuterol) Child dose 0.15 mg/kg (min= 2.5 mg) q20 mins x3 doses, then 0.15–0.3 mg/kg (≤ 10 mg) every 1-4 hrs prn, or 0.5 mg/kg/hr continuously 4–8 puffs q 20 mins up to 4 4–8 puffs q20 mins x 3 hrs, then every 1-4 hrs prn doses, then q1-4 hrs by inhalation using spacer/ holding chamber. 0.5 mg q30 mins x 3 doses, 0.25 mg q20 mins x3 doses, then q2-4 hrs prn then q2 -4 hrs Drug Adult dose Child dose levalbuterol Same as albuterol, but 5mg albuterol=2.5 mg levalbuterol Same as albuterol, but 5mg albuterol=2.5 mg levalbuterol Epinephrine 1:1000 0.3-0.5 mg sq q20 mins x3 0.01 mg/kg sq (up to 0.3–0.5 mg) q20 mins x3 (1mg/mL) Terbutaline mg/mL) (1 0.25 mg sq q20 mins x3 0.01 mg/kg sq q20 mins x3, then q2–6 hrs prn Prednisone, 120–180 mg/day in 3 or methylprednisolone, 4 divided doses x 48 prednisolone hrs, then 60–80 mg/day until PEF reaches 70% of predicted or personal best 1 mg/kg q6 hrs x 48hrs, then 1-2 mg/kg/day (max.=60 mg/day) in 2 divided doses until PEF 70% of predicted or personal best