Many steroids have an improved bioavailability when given in a micronized formulation. Previous studies with CDB-2914 have used crystalline powder up to a dose of 200 mg. We wish to compare the pharmacokinetic profile of crystalline and micronized CDB-2914, 10 mg. The drug will be given as a single oral dose and blood will be drawn frequently over 12 hours and then daily for five days for measurement of the compound.