Miso generally refers to misoprostol tablets, which may lead to incomplete abortion if the medication is not followed by misoprostol tablets.
Misoprostol tablets have the efficacy of softening the cervix, enhancing uterine tone, enhancing intrauterine pressure, and sequential combination with mifepristone can induce or enhance the amplitude and frequency of spontaneous uterine contractions, which can promote the expulsion of embryonic tissue from the uterine cavity.
If only mifepristone tablets are taken without misoprostol tablets, contractions may not be induced, which may prevent the expulsion of embryonic tissue from the uterine cavity. This may cause an incomplete abortion at this point.
It is recommended that women who have had a medicated abortion need to take misoprostol tablets promptly after taking mifepristone tablets, so as not to cause residue in the uterine cavity leading to abortion failure.