Types of Inhalation Dosage Forms (MDIs, DPIs, Nebulizers)
Start with the big picture
The lesson classifies inhalation dosage forms by their delivery approach. A pMDI uses a propellant to release a measured aerosol dose and may require coordination between actuation and inhalation; a spacer can assist delivery. A DPI uses the patient’s inhalation to disperse powder and therefore depends on adequate inspiratory effort. A nebulizer turns liquid medicine into a mist for inhalation, while a soft mist inhaler provides slow mist delivery. Nasal sprays offer a non-invasive route for local or systemic effects. The source highlights particle size as a factor in lung delivery and emphasizes patient training. Device advantages and drawbacks help inform clinical choice; the preview introduces these distinctions without replacing the fuller device-by-device discussion.
What you'll learn
- Distinguish pMDIs, DPIs, and nebulizers by how they deliver medicine.
- Describe the roles of propellants, inspiratory effort, and liquid-to-mist conversion.
- Recognize how soft mist inhalers and nasal sprays fit into the classification.
- Explain why patient training and device-specific trade-offs matter.
Continue your study
Work through the complete notes and reinforce the topic with the study tools available in the full lesson.
