Momofuron is a short-acting contraceptive, if you do not want to contraceptive, you can stop using the drug, but stop using the drug must have a precondition, this month’s Momofuron must be eaten, that is, from the fifth day of menstruation to start taking, and take 21 consecutive days before stopping the drug, can not stop the drug in the middle of the middle of the drug, once the middle of the drug can cause irregular vaginal bleeding, the endocrine will have a certain impact, so oral So the oral administration of momflox must be careful. In addition, you need to rule out contraindications before taking Momoflon, such as breast hyperplasia, hypertension, thrombosis tendency or patients with uterine fibroids are not allowed to take Momoflon. If an allergic reaction occurs during the course of taking Momofluron, the drug should be stopped immediately, no matter how many days you have taken it.