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Contraceptive vaginal ring

Contraceptive vaginal ring is a type of insert that is placed in the vagina for the purpose of birth control.

NuvaRing
NuvaRing compressed.jpg
NuvaRing is a flexible plastic ring.
Background
Type Hormonal
First use 2001
Failure rates (first year)
Perfect use 0.3%[1]
Typical use 1.5 to 9%[2][1]
Usage
Duration effect 4 weeks
Reversibility 0–4 weeks
User reminders Inserted for 3 weeks and then removed for 7 days
Advantages and disadvantages
STI protection No
Weight No proven effect
Period advantages Periods do not begin while ring is inserted.
Benefits Easy insertion and removal, only requires action every 1–3 weeks.

A number of types exist. One type is the ethinylestradiol/etonogestrel vaginal ring, also known as NuvaRing. It is a flexible plastic (ethylene-vinyl acetate copolymer) ring that releases a low dose of a progestin and estrogen over three weeks. It is currently used by approximately 1.5 million women worldwide.[3]

A progesterone vaginal ring has also been developed.[2] It is specifically made for use during breast feeding as it does not affect milk production.[2]

ReferencesEdit

  1. ^ a b Trussell, James (2011). "Contraceptive efficacy". In Hatcher, Robert A.; Trussell, James; Nelson, Anita L.; Cates, Willard Jr.; Kowal, Deborah; Policar, Michael S. (eds.). Contraceptive technology (20th revised ed.). New York: Ardent Media. pp. 779–863. ISBN 978-1-59708-004-0. ISSN 0091-9721. OCLC 781956734. Table 26–1 = Table 3–2 Percentage of women experiencing an unintended pregnancy during the first year of typical use and the first year of perfect use of contraception, and the percentage continuing use at the end of the first year. United States.
  2. ^ a b c Whitaker, Amy; Gilliam, Melissa (2014). Contraception for Adolescent and Young Adult Women. Springer. p. 98. ISBN 9781461465799.
  3. ^ Organon (March 21, 2007). "NuvaRing now available for Australian women". Retrieved 2007-04-12.