The 'experimental' drug is dexamethasone....a glucocorticoid type of steroid.............it's been around for years and this use is in the literature ........they are saying it's experimental because dexamethasone is not FDA approved for use in CAH....it is what is called 'off-label' use.
I have been prescribed the drug when I had pneumonia....
I'm not a big fan of wikipedia, but this is pretty good info.....
http://en.wikipedia.org/wiki/