Engineering Long‐Releasing Hollow‐like or Condensed Progesterone Hormone Microcrystals with Controlled Polymorphism

Hormone Microcrystals Progesterone hormone has several clinical applications, including as a treatment in cases of recurrent miscarriage, late pregnancy, in-vitro fertilization technologies, hormone replacement therapy, and birth control as a contraceptive agent. In article number 2400045, Shady Farah and co-workers present, for the first time, the engineering and formulating of two carrier-free crystalline structure forms of progesterone, hollow-like and condensed microcrystals with single polymorphism and potential localized release applications.