metered-dose inhalers (MDIs)

Metered-dose inhalers (MDIs) are portable devices used to deliver medication directly into the lungs, commonly for conditions like asthma or COPD. They release a specific amount of medication in a spray when pressed, typically containing a propellant to help aerosolize the drug. Users breathe in simultaneously with pressing the inhaler to ensure the medication reaches their airways effectively. Proper technique is important for effectiveness. MDIs are convenient, quick-acting, and can improve breathing quickly when used correctly. They are often prescribed by healthcare providers and can be used alone or with a spacer device for better delivery.