Duration of Protective Effect From Inhaled Ipratropium Bromide on Methacholine Airway Hyperresponsiveness
Status:
Completed
Trial end date:
2008-04-01
Target enrollment:
Participant gender:
Summary
Certain lung disease medications can influence diagnostic tests and research investigations.
This study will investigate how long ipratropium bromide must be withheld before a
methacholine challenge test can be conducted. This information will be useful for validating
current guidelines.