- Fluticasone works by preventing the swelling and irritation in the walls of the small air passages in the lungs. It belongs to a group of medicines known as inhaled corticosteroids. It is also called a preventer (because when used every day it prevents asthma attacks).
- Vilanterol works by relaxing and opening up the air passages, making breathing easier.
In New Zealand Breo Ellipta is available as a dry powder inhaler. Using an inhaler device enables the medicine to go straight into your airways when you breathe in. This means that your airways and lungs are treated, but very little of the medicine gets into the rest of your body.