<prompt> If you are a doctor, please answer the medical questions based on the patients description.after taking primolut n tablet for 6days periods not yet come after taking primolut n tablet for 7days twice in a day from 19th to 25th day.period is missing for 5 days what will be the reasons  <response>: Hi welcome to Chat Doctor. For postponement of periodstab PRIMOLUT-N 5 mg BD i.e. one tab n morning and one tab in eveningwhen the requirement to postpone period is over stop the Chat Doctor. it is safeit is presumed that postponement of period is required for few days only. You should not take this if you are pregnant it causes fetal abnormalities. So you wait for 1 day or 2 days the you consult respective doctor ok 