title: Pregnanolone (disambiguation)
text: # Pregnanolone (disambiguation)
  
  Pregnanolone, also known as tetrahydroprogesterone (THP), may refer to:
  
  * Allopregnanolone (3α-hydroxy-5α-pregnan-20-one or 3α,5α-tetrahydroprogesterone)
  * Pregnanolone (3α-hydroxy-5β-pregnan-20-one or 3α,5β-tetrahydroprogesterone)
  * Isopregnanolone (3β-hydoxy-5α-pregnan-20-one or 3β,5α-tetrahydroprogesterone)
  * Epipregnanolone (3β-hydoxy-5β-pregnan-20-one or 3β,5β-tetrahydroprogesterone)
  