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NuvaRing

NuvaRing is a birth control device made of a clear and flexible ring of polyethylene vinyl acetate. It measures 2 inches in diameter by 1/8 inch wide (0.38 cm). When inserted into the vagina, it delivers low levels of synthetic hormones (etonogestrel and ethinyl estradiol) into the body. These hormones are absorbed into the bloodstream, keeping the ovaries from releasing eggs and thickening cervical mucus (making it difficult for sperm to enter the uterus). Used correctly, Nuva Ring is 99% effective in preventing pregnancy.

Learn more by reading our Fact Sheet (pdf) on this topic.