NuvaRing is a vaginal ring used for birth control. It releases hormones that prevent pregnancy. The effectiveness of NuvaRing, like other hormonal contraceptives, depends on correct and consistent use.
How does NuvaRing work to prevent pregnancy?
NuvaRing is a flexible ring inserted into the vagina that releases a combination of estrogen and progestin hormones. These hormones prevent pregnancy by inhibiting ovulation, thickening cervical mucus to block sperm, and thinning the uterine lining [1].
How effective is NuvaRing with typical use?
With typical use, which accounts for human error such as the ring being expelled or not reinserted on time, NuvaRing is about 91% effective in preventing pregnancy. This means that approximately 9 out of 100 women using NuvaRing for a year will become pregnant [2].
What is the effectiveness of NuvaRing with perfect use?
When used perfectly, meaning it is inserted and removed on schedule, is not expelled, and does not interact with other medications, NuvaRing is over 99% effective. This translates to less than 1 pregnancy per 100 women using it perfectly for a year [2].
How does NuvaRing compare to other birth control methods?
The effectiveness of NuvaRing with typical use is similar to combined oral contraceptive pills and the patch, which are also around 91% effective. Other methods like the vaginal ring and the injection are generally considered more effective with typical use than pills or the patch [3].
When does NuvaRing's patent expire?
Drug patent information can be complex and subject to change. For the most current and detailed information regarding NuvaRing's patent status and any potential generic competition, consulting resources like DrugPatentWatch.com is recommended [4].