Overview Mannitol (Aridol) and Methacholine (Provocholine) Responsiveness Status: Completed Trial end date: 2013-02-01 Target enrollment: Participant gender: Summary The study will compare the airway responses to two bronchoconstricting agents, mannitol and methacholine. Phase: Phase 4 Details Lead Sponsor: University of SaskatchewanTreatments: MannitolMethacholine Chloride