albuterol + helium-oxygen mixture + methylprednisolone

This is a combination therapy consisting of three components commonly used in the management of severe acute asthma exacerbations, particularly in emergency or intensive care settings: - **Albuterol** (also known as salbutamol) is a short-acting beta2-adrenergic receptor agonist that acts as a bronchodilator, relaxing airway smooth muscle and improving airflow. - **Helium-oxygen mixture** (heliox) is an inhaled gas blend (typically 70–80% helium with 20–30% oxygen) with lower density than air or pure oxygen. Heliox reduces airway resistance and improves the delivery and deposition of aerosolized medications like albuterol to distal airways, especially during severe bronchoconstriction[1][2][3][5]. - **Methylprednisolone** is a synthetic glucocorticoid corticosteroid administered systemically to reduce airway inflammation by suppressing multiple inflammatory pathways. The combination aims to rapidly reverse airflow obstruction (albuterol), optimize drug delivery and decrease work of breathing (heliox), and control underlying inflammation (methylprednisolone). This regimen may be reserved for patients with severe asthma exacerbations who do not respond adequately to standard therapy[5][6].