Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/27/2025

Cough Management Guidelines

Introduction to Cough Suppressant Options

  • The American College of Chest Physicians recommends using dextromethorphan 60 mg or peripheral cough suppressants like levodropropizine for chronic or acute bronchitis, and ipratropium bromide for URI-related cough, while avoiding central suppressants like codeine due to its worse side effect profile 1, 2

Treatment Algorithm by Cough Type

  • For chronic or acute bronchitis, first-line options include dextromethorphan at 60 mg for maximum cough reflex suppression, and peripheral cough suppressants like levodropropizine and moguisteine for short-term symptomatic relief with substantial benefit 1, 4
  • Ipratropium bromide is the only inhaled agent recommended for cough suppression in chronic bronchitis and URI, and should be tried before central antitussives in postinfectious cough 1, 4
  • For URI-related cough, simple home remedies like honey and lemon may be as effective as pharmacological treatments and should be tried first, while ipratropium bromide is the only recommended agent 1, 4

Specific Agent Details

  • Dextromethorphan has an optimal dosing of 60 mg for maximum cough suppression, and has a superior safety profile compared to opioid alternatives, but should not be used for productive cough where secretion clearance is beneficial 2, 3
  • Codeine is not recommended as first-line due to adverse effects without superior efficacy, and causes drowsiness, nausea, constipation, and risk of physical dependence 1, 4, 2
  • Albuterol is not recommended for acute or chronic cough not due to asthma, and mucolytics are not recommended for chronic bronchitis cough suppression 1, 4
  • Drugs affecting the efferent limb of the cough reflex, and protussive pharmacologic agents in neuromuscular impairment are also not recommended 1, 4

Common Pitfalls to Avoid

  • Using subtherapeutic doses of dextromethorphan, prescribing codeine-based antitussives, using central cough suppressants for URI-related cough, and applying cough suppressants to productive cough where secretion clearance is needed should be avoided 1, 4, 2, 3