Medications for COPD Exacerbation
For a COPD exacerbation, immediately initiate three medication classes: short-acting bronchodilators (beta-agonists with or without anticholinergics), systemic corticosteroids (prednisone 40 mg daily for 5 days), and antibiotics (if increased sputum purulence is present). 1, 2
Bronchodilator Therapy
Short-acting inhaled β2-agonists (SABAs) combined with short-acting anticholinergics provide superior bronchodilation and should be the initial bronchodilator treatment for all acute exacerbations. 1, 2
- Administer albuterol 2.5-5 mg combined with ipratropium 0.25-0.5 mg every 4-6 hours during the acute phase until clinical improvement occurs (typically 24-48 hours). 2
- Either metered-dose inhalers with spacer or nebulizers deliver equivalent efficacy, though nebulizers are preferred for sicker patients who cannot coordinate 20+ inhalations needed to match nebulizer dosing. 1, 2
- Avoid intravenous methylxanthines (theophylline) due to increased side effects without added benefit. 1, 2
Systemic Corticosteroids
Prednisone 40 mg orally once daily for exactly 5 days is the evidence-based standard regimen. 1, 2
- Systemic corticosteroids shorten recovery time, improve FEV1 and oxygenation, reduce risk of early relapse by over 50%, decrease treatment failure, and shorten hospitalization duration. 1, 2
- Oral administration is equally effective to intravenous and should be the default route unless the patient cannot tolerate oral intake. 1, 2
- Do not extend corticosteroid therapy beyond 5-7 days, as longer courses provide no additional benefit and increase adverse effects. 1, 2, 3
- Corticosteroids may be less effective in patients with lower blood eosinophil levels. 1
Antibiotic Therapy
Prescribe antibiotics for 5-7 days when the patient has increased sputum purulence plus either increased dyspnea or increased sputum volume. 1, 2, 3
- Antibiotics reduce short-term mortality by 77%, treatment failure by 53%, and sputum purulence by 44%. 1
- First-line antibiotic choices include amoxicillin, amoxicillin-clavulanate, doxycycline, or macrolides, with selection based on local bacterial resistance patterns. 2, 3
- The most common causative organisms are Streptococcus pneumoniae, Haemophilus influenzae, Moraxella catarrhalis, and viruses. 2
Respiratory Support for Severe Exacerbations
Noninvasive ventilation (NIV) should be the first-line ventilation mode for patients with acute hypercapnic respiratory failure who have no absolute contraindication. 1, 2
- NIV improves gas exchange, reduces work of breathing, decreases intubation rates, shortens hospitalization duration, and improves survival. 1, 2
- Target oxygen saturation of 88-92% using controlled oxygen delivery to avoid CO2 retention. 2
- Obtain arterial blood gas within 1 hour of initiating oxygen therapy to assess for worsening hypercapnia. 2
Treatment Setting
More than 80% of COPD exacerbations can be managed in the outpatient setting with the combination of bronchodilators, corticosteroids, and antibiotics. 1, 2, 3
Hospitalization is indicated for:
- Severe exacerbations with acute respiratory failure 2
- Marked increase in symptom intensity 2
- New physical signs (cyanosis, peripheral edema) 2
- Failure to respond to initial outpatient management 2
- Significant comorbidities or inability to care for self at home 2
Critical Pitfalls to Avoid
- Never prescribe corticosteroids beyond 5-7 days for a single exacerbation. 1, 2
- Never use theophylline in acute exacerbations due to its side effect profile without added benefit. 1, 2
- Never delay NIV in patients with acute hypercapnic respiratory failure. 2
- Never prescribe antibiotics prophylactically; reserve them for exacerbations with purulent sputum. 3
- Never step down from triple maintenance therapy during or immediately after an exacerbation, as ICS withdrawal increases recurrent exacerbation risk. 2
Post-Exacerbation Management
- Continue or optimize long-acting bronchodilator maintenance therapy before hospital discharge. 2
- Schedule pulmonary rehabilitation within 3 weeks after discharge to reduce hospital readmissions and improve quality of life. 2
- Arrange follow-up within 3-7 days to assess response and optimize prevention strategies. 2