Key facts about Norethindrone
What dosages is Norethindrone available in?
Norethindrone is available as a 5 mg oral tablet.
What is Norethindrone used for?
Norethindrone is a progestin that is used to treat amenorrhea (ack of menstrual periods) or abnormal bleeding from the uterus due to hormonal imbalance, and endometriosis.
How does Norethindrone work?
Norethindrone is a progestin, which is a synthetic form of the natural sex hormone progesterone. It regulates the lining of your uterus (endometrium), which then helps manage your period and ease endometriosis-related pain.
How do I take Norethindrone?
Norethindrone is typically taken by mouth once daily. You may take it for as few as 5 to 10 days or long-term, depending on the condition being treated.
Is it safe for me to take Norethindrone?
Norethindrone is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not take this medication if you have any of the following:
- Known or suspected pregnancy.
- Undiagnosed vaginal bleeding
- Known, suspected or history of cancer of the breast
- Active deep vein thrombosis, pulmonary embolism or history of these conditions
- Active or recent (e.g., within the past year) arterial thromboembolic disease (e.g., stroke, myocardial infarction)
- Impaired liver function or liver disease
Norethindrone Common Side Effects
Common side effects of Norethindrone include:
- Breakthrough bleeding or spotting
- Change in menstrual flow
- Lack of periods
- Headache or migraine
- Breast enlargement
- Breast tenderness
- Nausea
- Vomiting
- Stomach cramps or bloating
- Patches of darkened skin (melasma or chloasma)
- Acne
- Hair loss
- Yellowing of the skin or whites of eyes (jaundice)
- Trouble sleeping (insomnia)
- Changes in vision
Norethindrone Serious Side Effects
Serious side effects are rare with Norethindrone. Contact your healthcare provider immediately if you experience any of the following.
- Blood clots: leg swelling, leg pain, skin that’s warm to the touch, trouble breathing
- Heart attack: chest pain, arm pain, cold sweat, shortness of breath
- Stroke: facial droop, weakness on one side of the body, confusion, sudden, severe headache, trouble speaking, walking, or talking
Effects of other drugs, drug classes and over-the-counter products on Norethindrone
- There are no major drug interactions listed for Norethindrone. However, you should always let your physician and pharmacist know about any other medications or supplements (including prescribed and over-the-counter medications, vitamins, and dietary or herbal supplements) that you are currently taking
Who makes Norethindrone?
Various FDA-approved generic manufacturers
Is Norethindrone safe in pregnancy?
Norethindrone is contraindicated during pregnancy as it may cause fetal harm when administered to pregnant women.













