Trimbow inhaler is used in Australia and is a triple therapy inhaler, containing a LAMA, a LABA and an ICS; so two bronchodilators (they work on different areas of the lungs) and an inhaled corticosteroid. You're getting all three meds that are usually given to people with COPD. Whether it's the best is dependent on how you respond. Some people will respond really well to the combination; others won't.

I was on anoro for no reason they changed me to trimbo wasn't no better then they changed me to trixeo it an inhaler type like ventolin it's good but I was recently in hospital and they put me back on anoro but try trixeo might help