Wanting to vomit when taking mifepristone tablets is the most frequent side effect of mifepristone, i.e. gastrointestinal reaction. Usually Mifepristone is used with Misoprostol, mainly in the process of medicated abortion. Due to the obvious gastrointestinal effects of Mifepristone, it is not recommended to drink or eat for 2h before and 2h after the application of Mifepristone. Because of its obvious gastrointestinal effect, it may cause obvious vomiting, so that mifepristone loses the corresponding pharmacological effect, and can not play a subsequent therapeutic effect. Mifepristone can also be used in the conservative treatment of uterine fibroids, for example, because the amount applied is relatively small, so the gastrointestinal reaction is relatively weak, and women can generally tolerate it.