The only effective way to use Mifepristone is by swallowing it. Misoprostol can be used effectively in 3 different ways: Sublingual, Buccal, Vaginal
Although using Misoprostol pills sublingual, buccal or vaginally are equally effective, it is not recommended to place them in your vagina. This is because sometimes Misoprostol can leave traces that can be visible for health staff if you need medical care. Using Misoprostol sublingual or buccally  does not leave visible traces of the pills.
 Women on Web. Are there other ways to use the Misoprostol? Retrieved from: https://www.womenonweb.org/en/page/985/are-there-other-ways-to-use-the-misoprostol