How to dissolve GLIBENCLAMIDE (Glyburide) into aqoeous solution?

[Hans-Georg Klieber]

I need glibenclamide (a sulfonylurea ) in aqueous solution at final 
concentrations of about 1 to 10 microMolar.
 
I usually take it from a stock solution in DMSO, but I am not 
sure if the glibenclamide is actually present (and biologically 
available) in the desired concentrations.
 
Any help on how to get this substance (and its chemical relatives)
at defined concentrations in aqueous solution is greatly appreciated.
 
Thank You.
Hans-Georg Klieber
 
Email: tbr1105 at sunmail.lrz-muenchen.de
Fax: +49-89-3849-3377