Results: The drug works best on mature, cervix opening (Bishop index before was 2.8 ± 0.9; after 2h was 7.6 ± 1.83; after 6h was 9.24 ± 1.74 6 hours) and the drug has a good effect on uterine contractions (after 2h, 47.1% had uterine contractions frequency 3 and 72, 13% had intense contractions of 31 - 50 mmHg; after 6 h, 83.6% had uterine contractions frequency 3 and 70.05% had intense contractions of 51 - 70 mmHg), had some sides effects on the mother: 1.4% vomiting, fever 1.4%. The drug does not affect the baby (normal fetal heart during labor in 91.4% of cases; 1er minute Apgar score > 7 at 97.14%; 5er minute Apgar score > 7 at 100% newborn).