When Trelegy Ellipta 200/62.5/25 mcg once daily, triple therapy was compared to Breo 200/25 mcg dual therapy, a significant improvement of 92 mL in trough FEV1 was seen for Trelegy. Your results can vary as each person’s condition is unique. Your doctor can evaluate your symptoms and determine which treatment may be the best option for you. More @Wikipedia
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