Foracort Inhaler contains a combination of budesonide (a corticosteroid) and formoterol (a long-acting beta agonist). It is primarily used for the maintenance treatment of asthma and chronic obstructive pulmonary disease (COPD). The corticosteroid reduces inflammation in the airways, while the beta agonist helps relax the muscles around the airways, making breathing easier and improving symptom control when administered through inhalation.