Primolut N is oral progesterone. Its active ingredient is norethisterone. It is used to treat cycle irregularities due to progesterone deficiency, endometriosis, and postponement or advancement of periods. It is not used as infertility drug. It can treat progesterone related problems. This drug has strong teratogenic potential and can not be used in pregnancy, so, its use to treat infertility is not documented.
