Which medication is marketed under the brand name Xopenex?

Levalbuterol is the medication marketed under the brand name Xopenex. It is a selective beta-2 adrenergic agonist primarily used as a bronchodilator to provide relief for asthma and other conditions that cause bronchospasm.

Levalbuterol is an enantiomer of albuterol, meaning it is derived from the same chemical structure but is a different form that is thought to have a more favorable side effect profile and may be more effective for some patients, particularly in terms of reducing heart-related side effects. Its specific marketing under the name Xopenex emphasizes its role as a newer alternative to albuterol, aiming to provide a more targeted therapeutic effect with potentially reduced adverse effects.

The other options are different types of medications that serve different purposes in respiratory treatment. Albuterol, while similar in effect, is not the same as levalbuterol and is marketed under different brand names. Salmeterol is a long-acting beta agonist, and fluticasone is a corticosteroid, which highlights the distinction between different classes of medications used in respiratory therapy.