About norethisterone bp + ph eur
Progestogen hormone
Used for
- Treatment of heavy or prolonged menstrual bleeding
- Delaying a period
- Treatment of absent or irregular periods
- Endometriosis
Usual adult dose
Varies by condition; commonly 5 mg two or three times daily for several days. Endometriosis treatment may require longer courses.
Common side effects
- Headache or dizziness
- Nausea or abdominal discomfort
- Breast tenderness
- Spotting or changes in bleeding
Important warnings
- Not a contraceptive
- Avoid with current or past blood clots, severe liver disease, or unexplained vaginal bleeding
- Seek urgent care for chest pain, breathlessness, or one-sided leg swelling
- May cause mood changes or fluid retention
Pregnancy
Do not use during pregnancy; exclude pregnancy before treatment when relevant.
Breastfeeding
Use only with medical guidance; norethisterone may pass into breast milk.
Interactions
- Some seizure medicines, rifampicin, and St John’s wort can reduce its effect
- Some HIV or hepatitis C medicines may alter its effects
- Other hormone medicines may affect bleeding or side effects
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.