NuvaRing® is a soft plastic ring which is inserted by the woman into the vagina. Once inserted the ring slowly releases low doses of two hormones, oestrogen and a progestogen, into the bloodstream. These hormones are similar to those naturally produced by the female body and the same as those used in the combined oral contraceptive pill.

How does NuvaRing® work?

  • It prevents ovulation (egg release from the ovary)
  • It thickens mucus in the cervix so sperm cannot enter the uterus (womb)
  • It changes the lining of the uterus, making it unsuitable for pregnancy