Deferiprone tablets belong to the natural progesterone, want to delay menstruation can be oral deferred progesterone tablets, can promote the endometrial lining of the sustained growth, to achieve the desired time to delay the time to stop the drug can be, this time will not have an effect. For example, some women because of the lack of progesterone, resulting in a long delay in menstruation, the lining is thin, you can take oral progesterone in the second half of the cycle, to restore the normal cycle, to help the lining to grow, it will play a therapeutic purpose, and will not have a certain effect. When some women have preeclampsia, they can take oral progesterone to protect the fetus and ensure its stability and health, and there is no effect at this time either. If oral progestin is taken at the beginning or just after menstruation, it will have an effect because it will cause disruption of the menstrual cycle and irregularities in menstruation.