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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.
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]
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 ...
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 ...
The Pearl Index, also called the Pearl rate, is the most common technique used in clinical trials for reporting the effectiveness of a birth control method. It is a very approximate measure of the number of unintended pregnancies in 100 woman-years of exposure that is simple to calculate, but has a number of methodological deficiencies.
9% failure rate with typical use (method not used consistently or correctly) 0.3% failure rate with perfect use [7] [18] Meant to be taken at the same time every day (some pills can be taken within 2–24 hours and still be effective) [19] Combined contraceptive patch [7] 120-150 μg of norelgestromin and 20-35 μg ethinyl estradiol daily [20 ...
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.