What can iduce periods?

Not sure of ? Are you asking what do doctors give you to make you have a period or induce a period? If that is the question, the answer if you are not worried about pregnancy is provera (medroxyprogesterone). The generic is Medroxyprogesterone and it has been around a long time. If you are asking what makes the periods start normally, it is hormone shifts from the ovaries that are controlled by hormones from the brain.