Ulipristal is a selective progesterone receptor modulator used in a single dose as an emergency postcoital contraceptive. No information is available on the clinical use of ulipristal during breastfeeding; however, amounts in milk are low. If ulipristal is required by the mother, it is not a reason to discontinue breastfeeding. Some older sources recommend withholding breastfeeding for 24 hours after a dose,[1] but this is no longer a requirement according to current FDA-approved labeling.