1,2-benzenediol, 4-(2-((1,1-dimethylethyl)amino)-1-hydroxyethyl)-, hydrochloride

Colterol HCl is the salt form of Colterol (free base), a short-acting β2-adrenoreceptor agonist. Bitolterol, a prodrug for colterol, is used in the management of bronchospasm in asthma and chronic obstructive pulmonary disease.

Colterol acetate 是一种选择性抑制 β-肾上腺素受体的化合物。它能够松弛气管平滑肌（主要作用于 β2 受体）、减弱比绷肌亚痉挛收缩（作用于 β2 受体），并且增强左心室乳头肌的收缩力（作用于 β1 受体）。

Colterol (free base) is a short-acting β2-adrenoreceptor agonist. Bitolterol, a prodrug for colterol, is used in the management of bronchospasm in asthma and chronic obstructive pulmonary disease.