Salbutamol (albuterol) — an example of β2 agonist<unk> s, also known as adrenergic β2 receptor agonists, are a class of drugs that act on the β2 adrenergic receptor. Like other β adrenergic agonists, they cause smooth muscle relaxation. β2 adrenergic agonists' effects on smooth muscle cause dilation of bronchial passages, vasodilation in muscle and liver, relaxation of uterine muscle, and release of insulin. They are primarily used to treat asthma and other pulmonary disorders, such as Chronic obstructive pulmonary disease (COPD).
Beta2-adrenergic agonist
Beta-adrenergic agonist
Alpha-adrenergic agonist
Muscarinic antagonist
Norepinephrine–dopamine disinhibitor
Dopamine agonist
Adrenergic release inhibitor
Adenosine receptor antagonist