Inhaled Corticosteroids: Pharmacology Made Easy & Clinically Relevant
Inhaled corticosteroids are critical to the proper treatment of asthma & certain patients with COPD. Mastering pharmacology brings to life the reasons why we use them and how to use them appropriately. Learn the why to master the how.
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This episode reviews inhaled corticosteroids as essential anti-inflammatory therapy in obstructive lung disease. ICS remain first-line maintenance treatment for persistent asthma, reducing exacerbations, hospitalizations, and mortality. In COPD, their use is selective—mainly in moderate to severe disease with frequent exacerbations and eosinophils ≥100 cells/µL, often in combination with LABA/LAMA therapy.
The episode highlights key agents (beclomethasone, budesonide, ciclesonide, fluticasone, mometasone), dose-equivalence ranges, and device technique differences (MDI, DPI, nebulizer). Adverse effects include dysphonia, oropharyngeal candidiasis, and rare systemic absorption effects such as adrenal suppression or bone loss; proper inhalation technique and mouth rinsing help minimize risks.
Table of Contents
00:00 Introduction to Inhaled Corticosteroids (ICS)
01:07 Why ICS Work in Asthma vs COPD: Pathophysiologic Differences
03:30 ICS Indications: First-Line Asthma Therapy & Select COPD Use
03:49 Mechanism of Action: Airway Inflammation, Edema & Remodeling
07:16 Anatomy Impact on Drug Delivery: Absorption & AEs
14:10 Airway Anatomy Deep Dive: Conducting vs Respiratory Zones
17:05 Steroid Effects on Beta-2 Receptors & Bronchodilator Response
21:00 ICS Dosing: Low, Medium, High Doses Across Age Groups
23:55 Adverse Effects: Thrush, Adrenal Suppression, Bone Density
26:40 Clinical Considerations: Neutrophil vs Eosinophil Inflammation
34:10 Inhaler Technique & Counseling Points: MDI, DPI, Nebulizer
#InhaledCorticosteroids #AsthmaPharmacology #pharmacology #Pulmonology #medicaleducation
Speaker:
Anthony Busti, MD, PharmD, MSc, FAHA, FNLA, is a licensed healthcare professional and medical educator with over 30 years of experience in clinical practice and academic teaching. He has trained and practiced as a nurse, pharmacist, and physician, bringing a uniquely comprehensive perspective to patient care and medical education.
Dr. Busti is dedicated to advancing evidence-based medicine and helping clinicians understand the underlying “why” behind clinical decisions to improve patient outcomes.
About This Channel:
This content is created by Anthony Busti, MD, PharmD, MSc, FAHA, FNLA, a board-certified physician with training at Johns Hopkins School of Medicine and University of Oxford and a medical educator for healthcare professionals and students. All material is based on current medical literature and evidence-based guidelines that align with principles of evidence-based medicine (EBM) and Evidence-Based Healthcare (EBHC).
Disclaimer:
This content is for educational purposes only and is not medical advice. It does not replace individualized evaluation, diagnosis, or treatment. Always seek the advice of a qualified health provider with questions about a medical condition and never delay care because of educational content.
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