The Use of Mifepristone (RU-486) for Early Pregnancy Termination

What is mifepristone (RU-486) and how is it used?

1. What hormone does mifepristone block?

2. How does mifepristone help terminate early pregnancies?

Answers:

1. Mifepristone blocks the hormone progesterone.

2. Mifepristone works by breaking down the lining of the uterus, preventing the pregnancy from continuing.

Overview of Mifepristone (RU-486) for Early Pregnancy Termination

Mifepristone (RU-486) is a medication used to terminate early pregnancies by blocking progesterone, a necessary hormone for sustaining pregnancy. It is vital to understand the distinction between mifepristone and emergency contraceptives, such as Plan B One-Step, which are intended for preventing pregnancy after unprotected intercourse, not for terminating established pregnancies.

Mifepristone works by blocking progesterone, leading to the breakdown of the uterine lining and halting the pregnancy's progression. This medication is often used in combination with misoprostol to complete the abortion process effectively.

It is essential to note that mifepristone's availability is subject to legal regulations, and laws regarding its use can vary significantly from one region to another. Therefore, mifepristone should only be taken under medical supervision and following the specific regulations of the area in which it is used.