metaproterenol
noun
meta·pro·ter·e·nol
| \ -prō-ˈter-ə-ˈnȯl
, -ˌnōl
\
, -ˌnōl
\
Medical Definition of metaproterenol
: a bronchodilator that is administered in the form of its sulfate (C11H17NO3)2·H2SO4 in the treatment of bronchial asthma and reversible bronchospasm associated with bronchitis and emphysema
— called also orciprenaline
Note: Metaproterenol acts as an agonist, binding to beta-receptors that mediate the relaxation of the bronchial muscles.