If you’ve felt unusually drowsy, dizzy, or mentally foggy after taking progesterone, the neurosteroid allopregnanolone may be the reason. This powerful metabolite of progesterone influences brain function, mood, and stress response, but its calming effects can sometimes feel overwhelming. In this article, we explore what allopregnanolone is, why it causes side effects like dizziness, what factors influence its activity, and how to support your body’s ability to metabolize it effectively.
