Xopenex

List of products in the National Drug Code with proprietary name xopenex. Levalbuterol is used to treat wheezing and shortness of breath that commonly occur with lung problems (such as asthma, chronic obstructive pulmonary disease). It is a quick-relief drug. Controlling these symptoms can decrease time lost from work or school. Levalbuterol belongs to a class of drugs known as bronchodilators. It works by relaxing the muscles around the airways so that they open up and you can breathe more easily.