Budesonide is an inhaled corticosteroid commonly used for the regular treatment and prevention of asthma symptoms. It effectively reduces chronic airway inflammation, making breathing easier.

Fluticasone is an inhaled corticosteroid used as a preventer medication for the long-term management of asthma and chronic obstructive pulmonary disease (COPD). It helps to reduce inflammation in the lungs.

Salbutamol (also known as albuterol) is a short-acting bronchodilator used to quickly relieve asthma symptoms and chronic obstructive pulmonary disease (COPD) exacerbations. It is a "reliever" inhaler.