What is the primary function of a metered dose inhaler?

The primary function of a metered dose inhaler is to administer medication directly into the lungs. These inhalers are specifically designed to deliver a precise dose of medication in aerosol form, allowing for rapid absorption into the respiratory system. This method is particularly effective for treating respiratory conditions such as asthma or chronic obstructive pulmonary disease (COPD), where quick and targeted delivery of bronchodilators or anti-inflammatory medications is crucial.

Using a metered dose inhaler ensures that the medication reaches the airways directly, which enhances its effectiveness and can provide relief from symptoms almost immediately. This targeted approach is why inhalers are a common choice for respiratory therapies, setting them apart from other forms of medication delivery like injections or tablets that do not deliver the medication directly to the respiratory system.