Breo Ellipta is a once-daily prescription inhaler used to treat asthma and chronic obstructive pulmonary disease (COPD). It contains fluticasone furoate, a corticosteroid that reduces inflammation, and vilanterol, a long-acting bronchodilator that helps open the airways for easier breathing. Breo Ellipta is designed for long-term control and is not a rescue inhaler for sudden breathing problems.