How Does Daysee Work?
Daysee is a combined oral contraceptive
, a birth control pill
that contains both an estrogen (ethinyl estradiol) and a progestin (levonorgestrel). It works to prevent pregnancy primarily by stopping ovulation (the maturation and release of eggs from the ovaries).
However, it also works to prevent pregnancy in two other, minor ways. Daysee alters the cervical mucus (the fluid of the cervix, which is the lower, narrow part of the uterus that is connected to the vagina), making it more difficult for sperm to enter the uterus. It also alters the lining of the uterus (the endometrium), making it less receptive to an embryo.
There is no reason why women need to have a monthly period while taking birth control pills. In fact, the "period" you experience while taking birth control pills isn't really a period at all.
Because ovulation does not occur, the body does not prepare for a possible pregnancy by building up the lining of the uterus, so there is no need to shed the lining, as with a regular period. Instead, the "period" that occurs due to birth control pills is actually caused by a withdrawal of the hormones in the pills, which causes bleeding.
Effects of Daysee
Daysee was shown to be an effective birth control method in a large clinical trial. In this study, 1 or 2 out of every 100 women who used it for a year became pregnant. This is quite effective, compared to many other methods of contraception. For instance, up to 14 percent of women using condoms for a year will become pregnant.