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Etonogestrel is a medication which is used as a means of birth control for women. [4] [5] [12] [13] It is available as an implant placed under the skin of the upper arm under the brand names Nexplanon and Implanon.
A contraceptive implant is an implantable medical device used for the purpose of birth control. The implant may depend on the timed release of hormones to hinder ovulation or sperm development, the ability of copper to act as a natural spermicide within the uterus , or it may work using a non-hormonal, physical blocking mechanism.
This was a “typical use” failure rate, including user failure to use the method correctly. [12] In comparison, the combined oral contraceptive pill has an actual use failure rate of 2–8%, [13] while intrauterine devices (IUDs) have an actual use failure rate of 0.1–0.8%. [14] Condoms have an actual use failure rate of 10–18%. [9]
The lowest failure rates are seen with the implants Jadelle and Implanon, at 0.05% per year. [9] [10] According to Contraceptive Technology, none of these methods has a failure rate greater than 0.3% per year. [10] The SERM ormeloxifene is less effective than the steroid hormone methods; studies have found a perfect-use failure rate near 2% per ...
LARC failure rates are comparable to those of sterilization. [15] LARCs and sterilization differ in their reversibility. The implant has a 0.05% failure rate in the first year of use, the levonorgestrel (hormonal) IUD has a 0.1% failure rate in the first year of use, and the copper IUD has a 0.8% failure rate in first year of use. [6]
It needs to be fitted by a medical professional. It has a failure rate of 17%. [1] A contraceptive sponge is another contraceptive method. Like the diaphragm, the contraceptive sponge contains spermicide and is inserted into the vagina and placed over the cervix to prevent sperm from entering the uterus. The sponge must be kept in place 6 hours ...
Rates are generally presented for the first year of use. [41] Most commonly, the Pearl Index is used to calculate effectiveness rates, but some studies use decrement tables. [42] The failure rate of fertility awareness varies widely depending on the system used to identify fertile days, the instructional method, and the population being studied.
Even when used perfectly, calendar-based methods, especially the rhythm method, result in a high pregnancy rate among couples intending to avoid pregnancy. Of commonly known methods of birth control, only the cervical cap and contraceptive sponge have comparably high failure rates. This lower level of reliability of calendar-based methods is ...