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Hormonal contraception refers to birth control methods that act on the endocrine system. Almost all methods are composed of steroid hormones, although in India one selective estrogen receptor modulator is marketed as a contraceptive. The original hormonal method—the combined oral contraceptive pill—was first marketed as a contraceptive in ...
Birth control, also known as contraception, anticonception, and fertility control, is the use of methods or devices to prevent pregnancy. [1] [2] Birth control has been used since ancient times, but effective and safe methods of birth control only became available in the 20th century. [3]
For methods that are not user dependent, the actual and perfect-use failure rates are very similar. Many hormonal methods of birth control, and LAM require a moderate level of thoughtfulness. For many hormonal methods, clinic visits must be made every three months to a year to renew the prescription.
Hormonal methods which contain the hormones estrogen and progestin include oral contraceptive pills (there is also a progestin only pill), transdermal patch (OrthoEvra), and intravaginal ring (NuvaRing). Progestin only methods include an injectable form (Depo-Provera), a subdermal implant (Nexplanon), and the intrauterine device (Mirena).
Long-acting reversible contraceptives (LARC) are methods of birth control that provide effective contraception for an extended period without requiring user action. They include hormonal and non-hormonal intrauterine devices (IUDs) and subdermal hormonal contraceptive implants. They are the most effective reversible methods of contraception ...
The distinctive feature of hormonal oral contraceptives when compared to other contraceptive methods is that they are less invasive and do not interfere with sex. [39] Conclusive data suggest that the failure rate of contraception in using hormonal oral contraceptives for the first year is 9% in typical use which allows missed doses , and <1% ...
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.
Exocytosis and other methods of membrane transport are used to secrete hormones when the endocrine glands are signaled. The hierarchical model is an oversimplification of the hormonal signaling process.