Allopregnanolone, a derivative of progesterone, is a fast-acting antidepressant for postpartum depression and may be effective for all types of depression.

“alloprano was recently approved by the FDA as a fast acting important antidepressant and even a single dose uh for postpartum postpartum depression but they express the opinion the the operating committee that allopurinano should work universally for any depression not just postpartum”