passages.id: split_1_test_1262_passage
passages.type: progene_text
passages.text: Gestodene ( 17 alpha-ethynyl-13 beta-ethyl-17 beta-hydroxy-4 , 15-gonadien-3-one ) is the most potent synthetic progestin currently available and it is widely used as a fertility regulating agent in a number of contraceptive formulations because of its high effectiveness , safety and acceptability .