A medication that opens up the airways in the lungs by relaxing the smooth muscle around the bronchi and bronchioles. Used to treat asthma, COPD, and other breathing difficulties.
From Greek 'bronchos' meaning windpipe, Latin 'dilatare' meaning to widen, and the suffix '-or' meaning agent. The term directly describes the anatomical location and mechanism of action.
Bronchodilators work like opening a squeezed drinking straw - your airways have tiny muscles around them that can tighten during an asthma attack, making breathing feel like trying to suck air through a pinched straw. These medications relax those muscles, instantly making breathing easier, which is why rescue inhalers work so quickly!
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