<prompt> Which of the following is a selective progesterone receptor modulator-OnapristoneUlipristalNomegestrolToremifene  <response>: Ans. is b i.e., Ulipristal o Ulipristal is a SPRM approved for use as an Emergency Contraceptive. o SPRM selective progesterone receptor modulators : Asoprisnil, ul ipristal, onapristone, mifepristone. 