Levonorgestrel: Effects, applications, side effects
How levonorgestrel works As a progestogen, levonorgestrel influences the body’s regulation of the menstrual cycle. This can be roughly divided into two phases, each of which lasts about two weeks: the follicular phase and the luteal phase. Ovulation heralds the second half of the cycle, the luteal phase. The ovary or the ovarian follicle that … Levonorgestrel: Effects, applications, side effects