Contraceptive Ring
The contraceptive ring is a small, flexible plastic ring, which you insert into your vagina, where it releases 2 hormones, oestrogen & progestogen. It stops ovulation, thickens cervical mucus to stop sperm reaching an egg, & thins the lining of the uterus to stop a fertilised egg implanting.
It is over 99% effective if always used according to instructions (perfect use); with fewer than 1 in 100 ring users getting pregnant in a year. With typical use, it is around 91% effective; with around 9 in 100 users getting pregnant in a year.
SyreniRing
Both brands contain the same active hormones and work in the same way. The main difference is in the length of time the contraceptive ring can be prescribed for: SyreniRing can be prescribed for up to 3, 6 or 12 months; and NuvaRing can be prescribed 3 months at a time.
