About mestranol + norethysterone
Combined oral contraceptive
Used for
Usual adult dose
One tablet daily for 21 days, followed by 7 tablet-free days; follow the product pack instructions.
Common side effects
- Nausea
- Headache
- Breast tenderness
- Breakthrough bleeding
Important warnings
- Rarely, blood clots, stroke, or heart attack can occur.
- Smoking increases serious cardiovascular risks, especially after age 35.
- Not suitable for some people with clotting disorders or certain cancers.
- Does not protect against sexually transmitted infections.
Pregnancy
Stop use if pregnancy is confirmed; it is not used during pregnancy.
Breastfeeding
May reduce milk supply, particularly soon after birth; suitability depends on timing and circumstances.
Interactions
- Some seizure medicines can reduce contraceptive effectiveness.
- Rifampin and rifabutin can reduce contraceptive effectiveness.
- St John’s wort can reduce contraceptive effectiveness.
- Some HIV and hepatitis medicines may interact.
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 It may be incomplete or out of date.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.