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Reviewed on June 24, 2025. by
Dr Alexandra Cristina Cowell
Writer & Clinical Content Reviewer
Next review due on June 24, 2028.
Last updated on Jul 01, 2025.
Progestin-only birth control pill.
Heather is a “mini pill,” a birth control option that only contains one hormone. It’s usually a safe choice for people who can’t take estrogen, and it may make your periods lighter or stop them altogether.
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Heather is a type of birth control pill that contains norethindrone, a progestin hormone. If taken at the same time every day, it’s over 99% effective at preventing pregnancy.[1]
Because it doesn’t contain estrogen, Heather is often used by people who are sensitive to combined pills, have migraines, or are at higher risk of blood clots or stroke. It can also help make periods more manageable.
How does Heather work?
Heather thickens your cervical mucus to stop sperm reaching an egg. It also thins the lining of your uterus, which makes it harder for a fertilized egg to implant. In some people, it also stops ovulation, so no egg is released in the first place.
What doses of Heather are there?
Heather comes in one dose of 0.35mg norethindrone.
If this doesn’t work well for you, or you experience any side effects, then you should seek advice from a doctor to see what other options are available to you.
This page was written by The Treated Content Team.
This page was medically reviewed by Dr Alexandra Cristina Cowell on June 24, 2025. Next review due on June 24, 2028.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
HeatherNorethindrone
How to use Heather
Take Heather once a day at the same time, every 24 hours. This ensures the hormone level stays steady in your body to keep you protected.
You can start taking Heather on the first day of your period for immediate protection. If you start on another day, use backup contraception (like condoms) for 48 hours.
There’s no break between packs. Just take one every day and start your next pack straight after finishing the last one.
What should I do if I make a mistake when using Heather?
If you’re more than 3 hours late taking Heather, or if you miss a pill entirely, take the next pill as soon as you remember. Keep taking your pills as normal after that, but use condoms for the next 48 hours.
If you’ve been vomiting or had diarrhea shortly after taking Heather, treat it like a missed pill and use backup contraception.
Don’t “double-dose” and take an extra pill, because it won’t give you any added protection.
This page was written by The Treated Content Team.
This page was medically reviewed by Dr Alexandra Cristina Cowell on June 24, 2025. Next review due on June 24, 2028.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
HeatherNorethindrone
There are some things you need to watch out for when taking Heather, and not everyone can use it.
Here’s the official safety info. If there’s something you’re not sure about, let us know.
HeatherNorethindrone
Heather: FAQ
Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.
How long does it take Heather to work?
Answer:
Heather usually takes 48 hours to start working if you don’t start to take it on the first day of your period. It’s always best to use a non-hormonal birth control for two days (48 hours) when you first start taking it.
Can I get Heather through private health insurance?
Answer:
Most health insurance plans cover birth control pills like Heather. Before ordering, check with your provider to see if it’s included, and whether there are specific pharmacies you need to use to be covered.
How is Heather different to other birth control?
Answer:
Heather contains just one hormone, unlike combined pills that use more than one. That makes it safer for people who can’t take estrogen, for example: those who are breastfeeding, over 35, smoke, or have migraines.
Unlike some combined pills, every pill in a Heather pack contains hormones, so you won’t take a break between packs.
Is Heather similar to any other treatments?
Answer:
Yes. Heather is similar to Nora- BE, Camila, Deblitane, Norethindrone, Incassia, Jencycla, Jolivette, Lyza, Errin and Sharobel. They all contain the same hormone in the same dose.
They work the same way - the differences are in name, price and packaging.
How effective is Heather?
Answer:
With perfect use, Heather is over 99% effective.[1] But with typical use, where pills are missed or taken late, the effectiveness is closer to 91%.
So to make sure it’s as effective as possible, it’s important to follow the instructions as closely as possible.
Do I need a prescription for Heather?
Answer:
Yes, you will need a prescription to be able to take Heather. This is so that a medical professional can check that you’re able to take Heather safely, and that it’s the best birth control option for you to take.
Treated trusted source:
Trussell, J. (2011). Contraceptive failure in the United States. Contraception, 83(5), pp.397–404.
Last updated on Jul 01, 2025.
How we reviewed this page:
Our experts continually monitor new findings in health and medicine, and we update our articles when new info becomes available.
Why this page was updated on Jul 01, 2025
We reviewed the content on this page and made some structural changes to make it more reader-friendly and accessible.
Current version (Jul 01, 2025)
Edited by: The Treated Content Team.Medically reviewed by: Dr Alexandra Cristina Cowell, Writer & Clinical Content Reviewer
Aug 01, 2022
Published by: The Treated Content Team.Medically reviewed by: Dr Alexandra Cristina Cowell, Writer & Clinical Content Reviewer
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
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Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a doctor.
Dr Alexandra Cristina Cowell
Writer & Clinical Content Reviewer
Cristina writes content for Treated, and reviews content produced by our other writers to make sure it’s clinically accurate.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
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