Salmeterol is marketed under which brand name?

Salmeterol is a long-acting beta agonist used primarily for the treatment of asthma and chronic obstructive pulmonary disease (COPD). It is marketed under the brand name Serevent. This medication helps to relax the muscles around the airways, making it easier for patients to breathe.

The other options presented—Allegra, Rhinocort, and Flonase—are associated with different active ingredients and indications. Allegra is an antihistamine used for allergic symptoms, Rhinocort is a corticosteroid nasal spray used to relieve nasal allergy symptoms, and Flonase is also a nasal steroid used for similar purposes. Thus, Serevent is correctly linked with salmeterol, as it is the recognized brand name specifically for this medication, focusing on long-term management of respiratory conditions.