PREMATURE OVULATION PREVENTIVE AGENT

摘要

A preventive agent of premature ovulation which may occur during in vitro fertilization or embryo transplantation, the agent comprising a non-peptide compound having an antagonistic effect on a gonadotropin-releasing hormone. The preventive agent shows a low toxicity, can be administered through an oral route, and has an excellent preventive effect on the premature ovulation during in vitro fertilization or embryo transplantation.