Oxis is a brand name for a medication that contains formoterol as its active ingredient. Formoterol is a long-acting beta2-adrenergic agonist (LABA) that is commonly used in the treatment of asthma and chronic obstructive pulmonary disease (COPD). It works by relaxing the muscles in the airways, which helps to open them and makes it easier to breathe. Oxis is typically administered through an inhaler and is used on a regular schedule to help control and prevent symptoms such as wheezing, shortness of breath, and chest tightness. It is important to note that Oxis is not intended for the relief of acute bronchospasm or as a rescue inhaler. Patients are advised to always have a fast-acting bronchodilator on hand for sudden symptoms.