LoSeasonique is the first low-dose, extended-cycle birth control pill, which allows women to only have one period every three months. It comes in tablet form and must be taken at the same time every day. Possible side effects include nausea, vomiting, and headaches. Before taking this medication, talk to your healthcare provider about any existing health conditions you have and any other medicines you are taking.

What Is LoSeasonique?

LoSeasonique® (levonorgestrel/ethinyl estradiol) is an oral contraceptive, better known as a birth control pill. It is the first low-dose, extended-cycle oral contraceptive. With LoSeasonique, you will get your period once every three months (four times a year) with a low level of hormones.
(Click LoSeasonique Uses for more information on what this medication is used for, including possible off-label uses.)

Who Makes It?

LoSeasonique is made by Teva Pharmaceuticals USA, Inc.

How Does LoSeasonique Work?

LoSeasonique belongs to a group of medications known as combined oral contraceptives. These birth control pills contain a combination of a progestin (levonorgestrel) and an estrogen (ethinyl estradiol). LoSeasonique prevents pregnancy primarily by stopping ovulation (the maturation and release of eggs from the ovaries). However, it also prevents pregnancy in two other, minor ways. LoSeasonique 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. The medication also alters the lining of the uterus (the endometrium), making it less receptive to an embryo.
With LoSeasonique, the hormone tablets are taken for 84 days (instead of the usual 21 days with most birth control pills). This allows for less frequent periods. There is no reason 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.
Last reviewed by: Kristi Monson, PharmD
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