Rosenborg J, Larsson P, Tegner K, Hallstrom G: Mass balance and metabolism of [(3)H]Formoterol in healthy men after combined i.v. and oral administration-mimicking inhalation. Drug Metab Dispos. 1999 Oct;27(10):1104-16. [Article]
FDA Approved Drug Products: Perforomist® inhalation solution [Link]