isoproterenol
noun
iso·pro·ter·e·nol ˌī-sə-prō-ˈter-ə-ˌnȯl 
-ˌnōl
: a sympathomimetic agent C11H17NO3 used in the treatment of asthma
Example Sentences
Recent Examples on the Web After Valeant Pharmaceuticals acquired the generic medication, isoproterenol, its price rose from $208 to $1,700 per injection, making it the second-highest individual drug expense for the University City institution, the hospital association said. 
Harold Brubaker, Philly.com, 10 May 2018 The health system’s pharmacists had alerted doctors about the skyrocketing cost of the drugs, nitroprusside and isoproterenol. Sarah Jane Tribble, Kaiser Health News, 9 Aug. 2017
Harold Brubaker, Philly.com, 10 May 2018 The health system’s pharmacists had alerted doctors about the skyrocketing cost of the drugs, nitroprusside and isoproterenol. Sarah Jane Tribble, Kaiser Health News, 9 Aug. 2017 Word History
Etymology
isopropyl + arterenol norepinephrine, from Arterenol, a trademark
First Known Use
1957, in the meaning defined above
Medical Definition
isoproterenol
noun
iso·pro·ter·e·nol ˈī-sə-prō-ˈter-ə-ˌnȯl, -nəl
: a sympathomimetic agent used in the form of its hydrochloride C11H17NO3·HCl or sulfate (C11H17NO3)2·H2SO4 especially as a bronchodilator in the treatment of asthma, bronchitis, and emphysema
called also isoprenaline, isopropylarterenol
see isuprel