Complex sentence: Along with norethisterone, it is one of the only progestins that is widely used as a progestogen-only "mini pill", and is the only newer-generation progestin with reduced androgenic activity that is used in such formulations.
Split into simpler sentences: Along with norethisterone, it is one of the only progestins that is widely used as a progestogen-only "mini pill". It is also the only newer-generation progestin with reduced androgenic activity that is used in such formulations.