Vaginal ring

Vaginal ring

Vaginal rings (also known as intravaginal rings, or V-Rings) are 'doughnut-shaped' polymeric drug delivery devices designed to provide controlled release of drugs to the vagina over extended periods of time. Several vaginal ring products are currently available, including:
* "Estring" - a low-dose estradiol-releasing ring, manufactured from silicone elastomer, for the treatment of vaginal atrophy.
* "Femring" - a low-dose estradiol-acetate releasing ring, manufactured from silicone elastomer, for the relief of hot flashes and vaginal atrophy associated with menopause.
* "NuvaRing" - a low-dose contraceptive vaginal ring, manufactured from poly(ethylene-co-vinyl acetate), and releasing etonogestrel (a progesterone) ethinyl estradiol (an estrogen).

A number of vaginal ring products are also in development.

Methods of use

General - Vaginal rings are easily inserted and removed. Vaginal walls hold them in place. Although their exact location within the vagina is not critical for clinical efficacy, rings commonly reside next to the cervix. Rings are typically left in place during intercourse, and most couples report no interference or discomfort. In many cases, neither partner feels the presence of the ring. [ [http://www.nuvaring.com/Consumer/user/aboutNuvaRing/whatElseShouldIKnow/index.asp#177483 FAQ on nuvaring.com] (broken)] Rings can be removed prior to intercourse, but in the case of the contraceptive Nuvaring only for one to three hours in order to maintain efficacy of birth control.

*Femring - Femring is inserted into the vagina and left in place for three months, after which it is removed and replaced with a fresh ring.

*Nuvaring - Nuvaring is inserted into the vagina and left in place for three weeks, after which it is removed for a 'ring-free' week to allow menstruation to occur.

Vaginal ring updates

Vaginal ring technology is currently being developed for the controlled release of microbicides and vaccines for the prevention of HIV infection.Fact|date=July 2007

Issues have been raised about the biodegradability of the product given the recent concern about pollution and use of plastics, especially of the poly(ethylene-co-vinyl+) archetypes.Fact|date=July 2007

References

[http://www.nuvaring.com/Consumer/commonQuestions/index.asp NuvaRing FAQ]

External links

* [http://www.estring.com Estring]
* [http://www.femring.com/ Femring]
* [http://www.nuvaring.com/ Nuvaring]


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • vaginal ring — /vəˌdʒaɪnəl ˈrɪŋ/ (say vuh.juynuhl ring) noun 1. a small plastic ring placed in the vagina, which regularly secretes hormones. 2. a plastic or rubber ring placed in the vagina to aid in the control of a prolapse …   Australian-English dictionary

  • vaginal ring — noun A contraception device consisting of a flexible ring held in the vagina which provides a controlled release of drugs …   Wiktionary

  • vaginal ring — a thin plastic ring containing one or more drugs; it is placed inside the vagina for controlled drug release over an extended period, as for delivery of hormones. Called also intravaginal r …   Medical dictionary

  • vaginal contraceptive ring — contraceptive vaginal r …   Medical dictionary

  • Vaginal — Die Vagina (mlat. vāgīna „Scheide“,[1] grch. κόλπος kólpos „Mutterschoß“[2]) ist ein schlauchförmiges primäres Geschlechtsorgan weiblicher Säugetiere zwischen Muttermund und Scheidenvorhof, das beim Geschlechtsverkehr den Penis aufnimmt und als… …   Deutsch Wikipedia

  • Anillo vaginal — Anillo vaginal, uno de los métodos anticonceptivos más utilizado. El anillo vaginal, anillo mensual o anillo anticonceptivo (NuvaRing) es un método anticonceptivo hormonal de larga duración[1] que consiste en un aro o anillo d …   Wikipedia Español

  • contraceptive ring — contraceptive vaginal ring a vaginal ring that contains a combination of progestins and estrogens, for slow release as a contraceptive device …   Medical dictionary

  • The Ring — may refer to:;Work titles * Der Ring des Nibelungen , a series of operas by Richard WagnerIn literature: * The Ring (poem) (ca. 1400), a late medieval poem by Heinrich Wittenwiler * The Ring (magazine) (from 1922), a prominent boxing magazine… …   Wikipedia

  • intravaginal ring — vaginal r …   Medical dictionary

  • Silver Ring Thing — logo Example silver ring Silver Ring Thing is a virg …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”