This document provides information about Advair Diskus, an inhaler used to treat asthma and chronic obstructive pulmonary disease. It contains fluticasone propionate and salmeterol, which help reduce inflammation and act as a beta receptor agonist. The dosage must be taken as recommended by a medical specialist and should not be used during an asthma attack without consulting a doctor first. Common side effects include wheezing, chest tightness, difficulty breathing, and headache. People with certain medical conditions should tell their doctor before using Advair.