 In contrast to androstenol (3α-androstenol), its 3β-epimer, 3β-androstenol, does not potentiate the GABAA receptor, even at high concentrations.This is in accordance with other 3β-hydroxy steroids, including isopregnanolone, epipregnanolone, 3β-dihydroprogesterone, and 3β-androstanediol, which similarly do not act as such, in contrast to their 3α-hydroxy variants.Androstenol, along with several isomers of androstanol, is an antagonist of the constitutive androstane receptor (CAR).