Ulipristal is a selective progesterone receptor modulator. Ulipristal works by modifying the action of progesterone (natural female hormone). Ulipristal used for the treatment of uterine fibroids and their associated symptoms, such as painful periods, heavy bleeding and pelvic pain. Ulipristal is an oral contraceptive which prevents pregnancy after unprotected sex. Ulipristal Degradation impurity, Ulipristal Process impurity, Ulipristal Potential impurity, Ulipristal USP Related Compound, Ulipristal N-Nitroso impurity, Ulipristal nitrosamine impurity etc. are listed below