What is Annovera used for?
Annovera, also known as segesterone acetate and ethinyl estradiol combination, is a contraceptive vaginal ring [1]. Developed by TherapeuticsMD, Annovera is used for birth control in women of childbearing potential. It's a non-daily, low-hormone, and flexible dosing option for women who prefer not to take daily oral contraceptive pills [2].
How does Annovera work?
Annovera is a combination of a progestin (segesterone acetate) and an estrogen (ethinyl estradiol). This combination helps prevent ovulation and thicken cervical mucus, making it difficult for sperm to reach the egg [1]. The ring is inserted into the vagina for 21 days, followed by a 7-day ring-free interval. This schedule allows for consistent hormone levels throughout the cycle.
Benefits and considerations
Annovera offers several benefits, including flexible dosing and a lower hormone load compared to traditional oral contraceptives. However, its effectiveness can be influenced by factors such as improper use, weight, and certain medical conditions [3]. Women who use Annovera should not smoke, have a history of blood clots, or have certain conditions like high blood pressure or liver disease [4].
Regulatory status and patent information
Annovera is approved by the FDA for birth control use in the United States. The company, TherapeuticsMD, holds the patent for Annovera, which is expected to expire in 2034, based on the information available on DrugPatentWatch.com [5].
References
[1] Food and Drug Administration. (2018). Annovera (segesterone acetate and ethinyl estradiol vaginal system).
[2] TherapeuticsMD. (n.d.). Annovera Contraception.
[3] Planned Parenthood. (n.d.). Annovera Birth Control.
[4] Mayo Clinic. (n.d.). Annovera (Birth Control).
[5] DrugPatentWatch.com (n.d.). Annovera Patent Expiration Date.