Norethindrone Acetate (norethindrone acetate)
Last reviewed · Source: First Databank (FDB) drug data
Overview
Norethindrone acetate is a synthetic progestin.
Norethindrone acetate is used for the treatment of secondary amenorrhea and for the treatment of abnormal uterine bleeding caused by hormonal imbalance in patients without underlying organic pathology such as fibroids or uterine cancer. The drug also is used for the treatment of endometriosis.
Generic name: norethindrone acetate
Pronunciation: (nor-ETH-in-drone)
Reference product & biosimilars
No reference, biosimilar or interchangeable associated with this drug.
Today’s intelligence on Norethindrone Acetate
Indications
The following indications are listed for Norethindrone Acetate:
- Abnormal Uterine Bleeding Due To Hormonal Imbalance
- Endometriosis
- Secondary Amenorrhea
Also known as: Abnormal Uterine Bleeding Secondary To Hormone Imbalance, Adenomyosis Externa, Endometriosis Externa, Secondary Physiologic Amenorrhea.
Dosing
No dosing information is available for this tab.
Norethindrone acetate is administered orally.
No dosing information is available for this tab.
No dosing information is available for this tab.
Drug interactions
There is no enhanced messaging for this drug.
There are no contraindication interactions for this drug.
There are no severe interactions for this drug.
There are no moderate interactions for this drug.
Contraindications
There is no enhanced messaging for this drug.
There are no contraindication contraindications for this drug.
There are no severe contraindications for this drug.
There are no moderate contraindications for this drug.
Adverse reactions
There is no enhanced messaging for this drug.
There are no severe adverse reactions for this drug.
There are no less severe adverse reactions for this drug.
Precautions
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No enhanced messaging available.
Although progestins have been used beginning in the first trimester of pregnancy to prevent habitual abortion or to treat threatened abortion, there is no adequate evidence from well-controlled studies to substantiate the efficacy of progestins for these uses; however, there is evidence of potential adverse effects on the fetus when these drugs are administered during the first 4 months of pregnancy. In addition, in most women, the cause of abortion is a defective ovum, which progestins could not be expected to influence. Because of their uterine-relaxant effects, progestins may delay spontaneous abortion of fertilized defective ova. Masculinization of the female fetus has reportedly occurred when progestins were used during pregnancy. Clitoral hypertrophy and fusion of the labia have been reported in a few female neonates born to women who had received medroxyprogesterone during pregnancy; hypospadias in male neonates born to women receiving progestational agents occurs at approximately twice the rate of occurrence in male neonates born to women not receiving the drugs. An association between intrauterine exposure to female sex hormones and congenital anomalies, including cardiovascular and limb defects, has been suggested. (See Cautions: Pregnancy, Fertility, and Lactation, in Estrogen-Progestin Combinations 68:12.) Use of progestins, including norethindrone, is not recommended during the first 4 months of pregnancy. If a woman becomes pregnant while receiving norethindrone or is inadvertently exposed to the drug during the first 4 months of pregnancy, she should be advised of the potential risks to the fetus.
Norethindrone should not be used to induce withdrawal bleeding as a test for pregnancy.
Progestins are reportedly distributed into milk. The manufacturers warn that the possible effects of progestins in milk on nursing infants have not been determined.
No enhanced messaging available.
ICD codes
No ICD codes are available for this drug.
Formulary status
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Last reviewed · Source: First Databank (FDB) drug data
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