Beta agonist / anticholinergic combinations are used to treat chronic obstructive pulmonary disease (COPD). These medications work by relaxing the muscles around your airways, making it easier for you to breathe. They come in different forms, including inhalers and nebulizers. Examples include ipratropium / albuterol (Duoneb), umeclidinium / vilanterol (Anoro Ellipta), and tiotropium / olodaterol (Stiolto Respimat). You can choose the form that best fits your needs.