How does NuvaRing (etonogestrel/ethinyl estradiol vaginal ring) work?

How Does NuvaRing Work?

NuvaRing contains 2 kinds of female hormones, estrogen and progestin, which work together to prevent pregnancy. They are the same kind of hormones found in the pill and they work the same way to prevent pregnancy even though they are administered differently with NuvaRing.

Once you place NuvaRing in your vagina, it releases a continuous low dose of hormones that helps prevent pregnancy. When used as directed, NuvaRing has been shown to be 98% effective, just like the pill. But you don't have to think about taking it every day.

NuvaRing works with your cycle

NuvaRing is used in a 4-week cycle. Keep NuvaRing in your vagina for 3 weeks (21 days) and then remove it for a 1 week
(7 day) break.

  • The ring should be inserted and removed on the same day of the week and at the same time. (For example, if you insert your NuvaRing on a Monday at 8:00 a.m., you should remove it on the Monday 3 weeks later at 8:00 a.m.) You will usually get your period during the 1-week break that you remove NuvaRing.

Insert a new NuvaRing after the 1-week break. The new ring should be inserted on the same day of the week and at the same time that you inserted it the last month, even if your period has not stopped.

How often do you take certain types of birth control?
 
Get answers. Check out frequently asked questions about NuvaRing (etonogestrel/ethinyl estradiol vaginal ring).
  Learn how to use Nuvaring (etonogestrel/ethinyl estradiol vaginal ring). It's easy to use.

Important Safety Information

  • NuvaRing is also not for women with high blood pressure that medicine can't control; diabetes with kidney, eye, nerve, or blood vessel damage; certain kinds of severe migraine headaches; liver disease or liver tumors; unexplained vaginal bleeding; breast cancer or any cancer that is sensitive to female hormones; or if you are or may be pregnant.
  • NuvaRing does not protect against HIV infection (AIDS) and other sexually transmitted infections.
    CONTINUE BELOW
 

Prescription NuvaRing (etonogestrel/ethinyl estradiol vaginal ring) is a flexible birth control vaginal ring used to prevent pregnancy.

Important Safety Information

Do not use NuvaRing if you smoke cigarettes and are over age 35. Smoking increases your risk of serious heart and blood vessel problems from combination hormonal contraceptives (CHCs) including heart attack, blood clots, or stroke which can be fatal. This risk increases with age and the number of cigarettes smoked.

  • The use of a CHC, like NuvaRing, is associated with increased risks of several serious side effects, including blood clots, stroke, or heart attack. NuvaRing is not for women with a history of these conditions or any condition that makes your blood more likely to clot. The risk of getting blood clots may be greater with the type of progestin in NuvaRing than with some other progestins in certain low-dose birth control pills. The risk of blood clots is highest when you first start using CHCs and when you restart the same or different CHC after not using it for a month or more.
  • NuvaRing is also not for women with high blood pressure that medicine can't control; diabetes with kidney, eye, nerve, or blood vessel damage; certain kinds of severe migraine headaches; liver disease or liver tumors; unexplained vaginal bleeding; breast cancer or any cancer that is sensitive to female hormones; or if you are or may be pregnant.
  • NuvaRing does not protect against HIV infection (AIDS) and other sexually transmitted infections.
  • The most common side effects reported by users of NuvaRing are irritation inside your vagina or on your cervix; headache (including migraine); mood changes (including depression); the ring slipping out or causing discomfort; nausea and vomiting; vaginal discharge; weight gain; vaginal discomfort; breast pain, discomfort, or tenderness; painful menstrual periods; abdominal pain; acne; and less sexual desire.

You are encouraged to report negative side effects of prescription drugs to the FDA.
Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

Please read the accompanying Patient Information for NuvaRing (etonogestrel/ethinyl estradiol vaginal ring), including the information about the increased risk of serious cardiovascular side effects, especially in women who smoke, and discuss it with your health care provider. The physician Prescribing Information also is available.