药物信息为Duo-Medihaler™ (isoproterenol hydrochloride andphenylephrine bitartrate) (3M Pharmaceuticals): Description

DUO-MEDIHALER (isoproterenol hydrochloride and phenylephrine bitartrate) is a combination of two sympathomimetics administered by oral inhalation for the treatment of bronchoconstriction. Each metered dose of the aerosol delivers through the oral adapter 0.16 mg isoproterenol hydrochloride and 0.24 mg phenylephrine bitartrate of appropriate particle size (the majority less than 5 μ). This drug product also cortains cetylpyridinium chloride, dichloro­difluoromethane, dichlorotetrafluoroethane, sorbitan trioleate, and trichloromonofluoromethane. Chemically, isoproterenol hydrochlo­ride is 4-[1-hydroxy-2-[(1-methytethyl) amino]ethyl]-1,2-benzene­diol hydrochloride and phenylephrine bitartrate is (-)-m-hydroxy­-a-[(methylamino) methyl]benzyl alcohol bitartrate.

Structural formulae: