Antiprogestins

Antiprogestins are substances that block or inhibit the hormone progesterone, which is essential for maintaining pregnancy and regulating the menstrual cycle. By preventing progesterone's action, they can stop pregnancy progression or induce early termination. They are also used in certain medical conditions like hormone-related cancers and in fertility treatments. These drugs work by binding to progesterone receptors, preventing natural progesterone from exerting its effects. Overall, antiprogestins are important tools in reproductive health and medicine, helping manage various conditions related to hormonal regulation.