This medicine is a progestogen structurally related to progesterone that has been given in threatened and habitual abortion, and to prevent premature labour. However, with the exception of proven progesterone deficiency, such use is no longer recommended.
Drug interactions can result in unwanted side effects or prevent a medicine from doing its job. Some medicines or medical conditions may interact with this medicine. Inform your doctor or pharmacist of all prescription and over-the-counter medicine that you are taking.
If you miss a dose, take as soon as remembered; do not take if it is almost time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.