Thiscontraceptive injectioncontains the progestin hormone, norethisterone enantate.
Noristerat does not offer any protection against sexually transmitted infections (STIs).
This article discusses the uses, side effects, and effectiveness of Noristerat.

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Why Is Noristerat Not Available in the United States?
Noristerat is also known as Doryxas, Norethisterone injectable, Norigest, Nur-Isterate, Syngestal, and Unidepo.
Noristerat Uses
Noristerat is a contraceptive that is injected into the muscle of the buttock.
The injection is usually given during the first one to five days of your monthly period.
Noristerat will continuously release progestin into your bloodstream over a period of eight weeks (two months).
Noristerat is meant to be a short-term method of contraception.
After eight weeks, you’re able to only have one more Noristerat injection.
Indications
Noristerat is meant to be a short-term method of contraception.
It is also a contraceptive option if you are breastfeeding.
This is because Noristerat may affect some of your results.
Side Effects of Noristerat
Not every person will have side effects from this injection.
Effectiveness of Noristerat
Noristerat is 97% to 99.7% effective.
There are certain medications that can lower the effectiveness of Noristerat.
It’s common in the United Kingdom, Europe, Africa, and Central and Latin America.
Noristerat only contains the hormone progestin.
The FDA hasn’t approved Noristerat due to animal studies and it may increase the risk of breast cancer.
Noristerat lasts for eight weeks and does not protect against STIs.
World Health Organization.Facts about injectable contraceptives: memorandum from a WHO meeting.Bull WHO.1982;60(2):199-210.
Benagiano G, Gabelnick H, Brosens I.Long-acting hormonal contraception.Womens Health (Lond).
2018;15:(3)699-702.