Generally speaking, the time for Blood Break to take effect is almost three days or so, if there is no obvious effect after drinking for three days, it is recommended to consult a doctor in time to see if the medicine is not right or the effect is not obvious, and it is necessary to use other ways to treat together. The blood flow is generally applicable to the clinical excessive menstrual flow, female functional bleeding, under the guidance of the doctor to use. Usually about three days of use can achieve better results. If after three days, there is still a large amount of vaginal bleeding, it is possible that the use of this drug alone is not effective, and you need to consult a doctor to see if it is combined with other drugs or other ways of treatment. The process of taking the blood flow need to strictly abide by the doctor’s instructions, do not blindly use the drug or adjust the dose of the drug, to avoid adverse reactions.