Instead, it uses synthetic forms of progesterone called progestins.
The oral form of this jot down of birth control is also called the minipill.
It is between 93% and 99% effective in preventing pregnancy.
In the body, progesterone is a sex hormone produced in the ovaries.
It is not as good at preventing ovulation as other types of birth control pills, however.
Progestin-only vs.
It is not known whether progestin-only oral contraceptives also increase the risks of these conditions.
You should tell them if you take any other medications or supplements as well and if you smoke.
Your healthcare provider will advise you on when your chosen method will become effective against pregnancy.
For example, the minipill needs to be taken for a week before it becomes effective.
An IUD becomes effective immediately upon insertion.
The Depo-Provera shot must be given every four months.
Another thing to consider before starting a progestin-only method is whether you hope to become pregnant in the future.
Types of Progesterone-Only Birth Control
Progestin-only birth control comes in many different forms.
They are available in 28-day packs which you take every day during your four-week cycle.
All 28 pills contain progestin; there are no placebo pills.
Opill is the first and only birth control pill available without a prescription.
Depo-Provera injections offer the added benefit of reducing thepain associated with endometriosis.
Common side effects include weight gain,irregular bleeding, spotting, and prolonged bleeding.
Once stopped, it may several months to a year tostart ovulating againand become pregnant.
The Mirena IUD has also been approved to helptreat heavy periods.
As with all intrauterine devices, complications may include perforation of the uterus, infection, and accidental expulsion.
Skyla IUD
Skylais another progestin-only IUD option.
It is a bit smaller than Mirena and is typically easier for a healthcare provider to insert.
Once inserted, the Skyla slowly releases a form of progestin (calledlevonorgestrel) over a three-year period.
Nexplanon Subdermal Implant
Nexplanon is the newer version of the Implanon subdermal implant.
Nexplanon is inserted under the skin of the arm and can provide up to three years of pregnancy protection.
Nexplanon isradiopaque, meaning that it can be seen in an X-ray.
This helps your healthcare provider see if it has been properly placed.
Insertion requires a local anesthetic and generally takes a few minutes.
Noristerat Injection
The Noristerat injection is a birth control delivery system containing progestinnorethisterone enanthate.
The Noristerat injection is designed to be a short-term birth control method.
Which key in Is Right for You?
The best way to make an informed decision is to discuss these pros and cons with your gynecologist.
Frequently Asked Questions
No.
Progesterone-only birth control isnotrecommended as a treatment for acne.
No, progesterone-only birth control does not increase the risk of blood clots.
Many women choose progesterone-only birth control specifically for this reason.
Combination birth control pills have been shown to increase the risk of blood clots.
Women at increased risk of stroke or heart disease are advised to choose progesterone-only birth control methods.
Yes, progesterone-only pills are often recommended for breastfeeding mothers.
Some research has suggested that the estrogen in combination birth control pills may inhibit breast milk production.
Progesterone alone does not have this effect.
Centers for Disease Control and Prevention.Contraception and birth control methods.
American College of Obstetricians and Gynecologists.Long-acting reversible contraception (LARC): Intrauterine equipment (IUD) and implant.
2017;3:1. doi:10.1186/s40748-016-0040-y
Carlton C, Banks M, Sundararajan S.Oral contraceptives and ischemic stroke risk.Stroke.
2018;49(4):e157-e159.
doi:10.1161/STROKEAHA.117.020084
American Academy of Family Physicians.
Familydoctor.org.Progestin-only birth control pills.
Reimers A, Brodtkorb E, Sabers A.Interactions between hormonal contraception and antiepileptic drugs: Clinical and mechanistic considerations.Seizure.
2015;28:6670. doi:10.1016/j.seizure.2015.03.006
Schlatter J.Oral contraceptives after bariatric surgery.Obes Facts.
2017;10(2):118-126. doi:10.1159/000449508
Medline Plus.Progestin-only (norethindrone) oral contraceptives.
2016;155(1):3-12. doi:10.1007/s10549-015-3663-1
U.S. Food & Drug Administration.Physician information: Depo-provera.
American College of Obstetricians and Gynecologists.Progestin-only hormonal birth control: Pill and injection.
Parker C.Injectable contraceptives: Underused and undervalued?Prof Care Mother Child.
1997;7(4):95-7.
2017;3(1):44-52. doi:10.1016/j.ijwd.2017.02.018
