Norethindrone
Pronounced nor-eth-IN-drone
Brand names: Micronor, Aygestin
Type: Progestin hormone and contraceptive · All Women's Health Medicines
What Norethindrone is used for
- Birth control (progestin-only pill)
- Treating endometriosis and abnormal uterine bleeding (higher-amount product)
- Delaying periods (clinician-directed)
Common side effects
- Irregular bleeding
- Headache
- Breast tenderness
- Nausea
- Mood changes
Important cautions
- The contraceptive pill form must be taken at the same time every day — being late by even a few hours reduces protection
How it comes
Tablets. This guide lists forms only — it never lists strengths or doses.
Related medicines — Women's Health Medicines
Condition guides on MedicalVideos.com
- Contraception — videos, articles and guides · medicines for contraception
- Fertility — videos, articles and guides · medicines for fertility
Please note: This page is a patient-education summary, not medical advice, and it deliberately contains no doses. Medicines affect everyone differently — always follow your own prescription and talk to your doctor or pharmacist before starting, stopping or changing any medicine.