About this medication
- Norethindrone is a progestin-only birth control pill (sometimes called a “mini-pill”) used to prevent pregnancy.
Prevents pregnancy; different from higher-dose norethindrone acetate products.
How to use it
- Take one tablet by mouth at the same time every day, every day, with no breaks between packs.
- Start a backup birth control method (like condoms) for the first 48 hours after you start this pill, unless you start within the first 5 days of your period.
If you miss a dose
- If you take a tablet more than 3 hours late, or miss a dose entirely, take it as soon as you remember and use a backup method (like condoms) for the next 48 hours.
- If you vomit or have severe diarrhea within a few hours of taking your tablet, treat it the same as a missed dose.
Take every day without a break at the same time. A dose more than three hours late requires the missed-pill plan and backup for 48 hours.
Pregnancy and breastfeeding
- Do not use if you are pregnant. This pill is considered compatible with breastfeeding and can be started right after delivery.
Can be considered during breastfeeding after individual counselling.
Before you use it
- Tell your healthcare professional if you are pregnant, think you might be pregnant, or have breast cancer, liver disease, or unexplained vaginal bleeding.
- This pill does not protect against sexually transmitted infections — use condoms for that protection.
Important warnings
- Get urgent medical help for leg swelling or pain, chest pain, sudden shortness of breath, a severe headache, or vision changes.
- If you have ongoing lower abdominal pain or think you might be pregnant while using this pill, contact your doctor promptly.
Avoid pregnancy, current breast cancer, active liver disease and unexplained bleeding.
Possible side effects
- Irregular bleeding or spotting, especially in the first few months.
- Headache, breast tenderness, nausea, mood changes, acne, or weight change.
Irregular bleeding, headache and breast tenderness.
When to get help
When to get emergency help
- Leg swelling or pain, chest pain, sudden shortness of breath, a severe new headache, or sudden vision changes.
When to contact a healthcare professional
- If irregular bleeding is heavy or does not improve after a few months.
- If you think you might be pregnant, or if you have new lower abdominal pain.
- If you are prescribed a new medication, since some medications make this pill less effective.
New severe lower abdominal pain or suspected pregnancy requires assessment for ectopic pregnancy.
Other medicines and products
- Certain seizure medications, rifampin, rifabutin, St. John's wort, and some newer weight-loss/diabetes injections (like tirzepatide) can make this pill less effective — tell the Care365 care team about all medications and natural health products you take.
Enzyme inducers can reduce protection; review medicines and supplements.
Missed doses, storage and accidental exposure
- Store at room temperature, away from moisture, in the original package.
Follow your own product’s missed-dose instructions. If you are unsure, ask the Care365 clinical team before taking an extra dose. Contraceptives, injections and modified-release medicines may need a specific plan.
Keep the original packaging and follow its storage, expiry and disposal instructions. Keep medicines away from children and pets. Ask about refrigeration, after-opening limits and safe sharps disposal when relevant.
For suspected overdose or accidental swallowing, contact poison control or urgent medical care promptly. Call emergency services for breathing difficulty, collapse or a seizure.
Key points to remember
- Take it at the same time every day — timing matters more with this pill than with combined birth control pills.
- More than 3 hours late counts as a missed dose.
- This pill does not protect against STIs.
These practical points come from the Pharmasist patient handout for the same product monograph cited by this guide.