Xenodone is also a progestogen used clinically mainly in assisted reproductive technology, the supplemental treatment of progesterone, so it can be administered vaginally, vaginally once a day, one at a time can be. In the instructions of xenodone is clearly marked on the preservation method is below 25 ℃ environment, if in summer, often the temperature will exceed this temperature, it is recommended to put in the refrigerator freezer to give preservation. If it is winter indoor temperature does not exceed 25 ℃, can be placed indoors to give preservation will not affect the effectiveness of the drug. Just chenodone in the process of use, must be in accordance with the doctor’s orders to use, in the use of the process of vaginal pushing the drug when the action should be gentle.