Effect: Beclazone CFC-Free Inhaler contains Beclometasone Dipropionate, which belongs to a group of medicines called corticosteroids. Beclometasone dipropionate works on the lungs to help prevent asthma attacks by reducing the swelling and irritation in the walls of the small air passages. This eases the breathing problems. Very little corticosteroid gets absorbed into the body. This medicine is not the same type of steroid used by body-builders and athletes to increase their performance.