Acute Uncomplicated Bronchitis Treatment

Introduction to Bronchitis Treatment

• The American College of Physicians and CDC explicitly recommend against routine antibiotic treatment for acute bronchitis in the absence of pneumonia 1, 2
• More than 90% of acute bronchitis cases are viral, making antibiotics ineffective regardless of which one you choose 1, 2, 3

Evidence Against Azithromycin

• A systematic review of 15 randomized controlled trials found limited evidence supporting antibiotics for acute bronchitis, with a trend toward increased adverse events in antibiotic-treated patients 1, 2
• Patients with acute bronchitis treated with macrolides (including azithromycin) had significantly more adverse events than those receiving placebo, with no improvement in cough resolution 1, 2

Diagnosis and Treatment of Pneumonia

• For healthy adults under 70 years, pneumonia is unlikely if ALL of the following are absent: heart rate >100 beats/min, respiratory rate >24 breaths/min, oral temperature >38°C (100.4°F), and abnormal chest examination findings (rales, egophony, or tactile fremitus) 1, 2, 3
• If pneumonia IS suspected based on these criteria, then testing and antibiotics are appropriate 1, 2

Symptomatic Relief for Bronchitis

• Instead of antibiotics, consider symptomatic relief with cough suppressants, expectorants, and decongestants 1, 2, 3
• β-agonists (albuterol) may be used only if the patient has asthma or COPD—not beneficial otherwise 1

Special Circumstances

• Azithromycin has proven benefit in chronic bronchiectasis with ≥3 exacerbations per year, particularly with Pseudomonas aeruginosa infection 4

Common Pitfalls to Avoid

• Acute bronchitis leads to more inappropriate antibiotic prescribing than any other respiratory infection in adults, with over 70% of visits resulting in unnecessary prescriptions 1, 2
• Don't be fooled by colored sputum—this is the most common reason clinicians inappropriately prescribe antibiotics for viral bronchitis 1, 3