Introduction For people with asthma, chronic obstructive pulmonary disease (COPD), or other respiratory conditions, medication is essential for keeping symptoms under control and preventing dangerous flare-ups. But not all inhalers or medications are the same. Two primary categories—controller medications and rescue medications—play different roles in managing respiratory health. Understanding how they work together can help you use them effectively and avoid unnecessary complications. What Are Controller Medications? Purpose Controller medications, also called maintenance medications, are taken daily to manage the underlying inflammation, swelling, and mucus in the airways. They are designed to prevent symptoms before they happen, not to provide…