![bronchodilators-dont-improve-smoking-related-respiratory-symptoms-in-people-without-copd](https://utterbuzz.com/wp-content/uploads/2022/09/bronchodilators-dont-improve-smoking-related-respiratory-symptoms-in-people-without-copd.jpg)
Researchers have found that dual bronchodilators — long-lasting inhalers that relax the airways and make it easier to breathe — do little to help people who do not have chronic obstructive pulmonary disease (COPD), but who do have respiratory symptoms and a history of smoking.