- Jul 22, 2008
- Reaction score
I was prescribed a valve holding chamber (VHC) with my metered dose inhaler (MDI) when I was young. I forgot to ask my physician if it was still necessary (don't have his number at hand). I looked through the U.S. National Library of Medicine, and a couple of studies turned up, indicating it was just as effective as using a small volume nebulizer (SVN). However, all of these studies seem to only be applicable to children. So does anybody know if adults still benefit from VHCs?