Standard selective β-adrenoceptor agonist; vasorelaxant and bronchodilator. Activation of β2 receptors activates downstream PKA and ERK, and may stimulate NO-mediated endothelium-dependent smooth muscle relaxation. Active in vivo. Also available as part of the β-Adrenoceptor Agonist Tocriset™ and Mixed Adrenergic Tocriset™.