What receptors does Albuterol primarily target?

Albuterol primarily targets Beta2 receptors, which are located in the smooth muscle of the bronchial passages. Activation of these receptors leads to bronchodilation, making it easier for patients with respiratory conditions such as asthma or chronic obstructive pulmonary disease (COPD) to breathe.

Beta2 adrenergic agonists like albuterol work by stimulating these receptors, causing relaxation of the airway muscles and opening up the airways for improved airflow. This mechanism is crucial in the management of bronchospasm associated with asthma and other lung conditions.

While Alpha receptors play a role in vasoconstriction and Beta1 receptors are primarily associated with cardiac function, they are not the primary targets of albuterol. M3 muscarinic receptors are involved in bronchoconstriction and are not directly affected by albuterol, which highlights the drug's specific action on Beta2 receptors as critical for its therapeutic effects.