Danmei is the only patented emergency contraceptive pill. After taking it, you are not afraid of vomiting and do not need to take additional doses. The main reason is that it has an extra layer of enteric coating to avoid irritation to the stomach and side effects. It is very small, and some people with poor physical fitness will have a slight early pregnancy-like reaction (compared to other emergency contraceptive pills, it is very good). Generally, no treatment is needed, and it will gradually ease over time, usually no more than 24 hours!