title: Antiprogestins.
mesh_terms: D000019:Abortifacient Agents / Q000494:pharmacology*; D000021:Abortifacient Agents, Steroidal / Q000009:adverse effects / Q000494:pharmacology* / Q000627:therapeutic use; D000737:Androstenols / Q000009:adverse effects / Q000494:pharmacology* / Q000627:therapeutic use; D006063:Chorionic Gonadotropin / Q000097:blood*; D002986:Clinical Trials as Topic; D003280:Contraceptives, Oral, Synthetic / Q000009:adverse effects / Q000494:pharmacology* / Q000627:therapeutic use; D005260:Female; D006801:Humans; D009325:Nausea / Q000139:chemically induced; D011247:Pregnancy; D011374:Progesterone / Q000037:antagonists & inhibitors / Q000097:blood*
chemical_list: D000019:Abortifacient Agents; D000021:Abortifacient Agents, Steroidal; D000737:Androstenols; D006063:Chorionic Gonadotropin; D003280:Contraceptives, Oral, Synthetic; D011374:Progesterone; C046855:epostane