Norethindrone acetate, ethinyl estradiol



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Norethindrone acetate, ethinyl estradiol


Briellyn is a combined birth control pill. It comes with three weeks of pills containing hormones and one “inactive” week to keep you in the habit.

You can get Briellyn online at EveAdam. We work with licensed doctors and your medication is shipped quickly and securely from a US pharmacy.

From only $9.15 per month


Forget the pharmacy and avoid the appointment. EveAdam is a hassle-free way to get your birth control online. Start a consultation today to receive tailored birth control recommendations based on your unique needs and medical history. Select from the list, and your prescription’s sent to be filled at GoGoMeds, our preferred pharmacy. You’ll get your first order in 2-5 working days.

Relax about refills. Those are all part of your EveAdam subscription. Set your desired delivery schedule and we’ll do the rest.

What is Briellyn birth control?

Briellyn is a combined birth control pill. It’s got both estrogen and progestin so if you’re looking for a progestin-only pill, the mini pill might be a better option for you.

Take Briellyn every day. It comes with three weeks of active pills containing hormones and one week of inactive pills, keeping you in your daily habit. When taken consistently, Briellyn is very effective at preventing pregnancy.

Is Briellyn generic?

Yes, Briellyn is a generic version of Ovcon 35 and is made by Glenmark Pharmaceuticals. Briellyn and Ovcon 35 are bioequivalent, which is a fancy way of saying they’ve got the same active ingredients in the same amounts. That means they’re both equally effective at preventing pregnancy and have the same interactions and possible side effects.

Since the company that makes them is different, you’re likely to see different packaging and pill colors. The price will also likely be different — generic medications are generally cheaper than their brand-name counterparts.

Do I need a prescription for Briellyn?

Briellyn and other hormonal birth control is only available by prescription. That used to mean calling your doctor, taking time out of your day for an appointment and then making a separate trip to the pharmacy. At EveAdam, we think that’s a lot of work for something so important.

Our way is a little (OK, a lot) simpler. Take our online consultation to see if Briellyn is right for you. A licensed doctor will review your info and make birth control recommendations. Once you’ve selected what you’d like from your options, your prescription is sent to our preferred pharmacy and they’ll send it to you in the mail. That’s it.

Page reviewed by:
Dr Bruce Oran
Dr Bruce Oran
Senior Medical Adviser
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Last updated November 1, 2021


What dosage is Briellyn?

Briellyn contains .4mg of norethindrone acetate (a progestin) and .035mg of ethinyl estradiol (an estrogen). You might also see the second number written as 35mcg, or micrograms. The last seven pills are inactive and don’t contain any hormones.

There are other birth control pills which have these same ingredients as Briellyn in the same amounts. They include Balziva, Ovcon 35, Zenchent, Philith, Gildagia and Vyfemia.

There are also a lot of birth control pills that contain norethindrone acetate and ethinyl estradiol, but in different amounts. Some well-known names from this list include Loestrin Fe and Microgestin Fe, which are monophasic pills. That means they’ve got the same hormone dose in all their active pills. Ortho-Novum is a triphasic pill with norethindrone acetate and ethinyl estradiol. It’s got different amounts (phases) of the two hormones throughout the month. Finally, there’s Lo Loestrin Fe, which has the lowest daily dose of estrogen available.

Let the doctor know you’re interested in learning more about the dosage of your birth control pill during your consultation. They can help you find a pill that meets your needs.

How Briellyn works

What’s in the inactive pills?

How can I buy Briellyn online?

How to take Briellyn

To keep your protection level as high as possible, you’ll want to take Briellyn at the same time every day. Pick out a time that’s convenient for you before starting your pack, so you’re not having to use a back-up birth control like condoms to adjust the time. Noon can be a good time — chances are you’re awake (early-morning pills are a bummer on weekends) and hopefully not too busy.

You can take Briellyn with food but you don’t need to. Water is fine. It’s possible you’ll experience a bit of nausea when starting to take hormonal birth control, though, so try Briellyn with a small meal or a snack if that happens to you.

Your pack has three weeks of active pills and one week of inactive pills, which will be different colors. Take the whole pack before starting a new one.

What is the effectiveness of Briellyn?

I missed a Briellyn pill. Now what?

Does Briellyn birth control have side effects?

It can. Side effects are common with hormonal birth control, but are mostly mild and go away on their own. These mild side effects include things like breast tenderness, nausea, headache and abdominal pain. Check the package insert that came with Briellyn to learn more about side effects.

Briellyn can also have more dangerous side effects. These are very rare but it’s important to be aware of them. If you’re experiencing anything uncomfortable, talk to the doctor. However, there are a few side effects where you should go right to an emergency room. They include signs of a blood clot or allergic reaction, lumps in your breasts or heavy vaginal bleeding that persists for a long time.

Weight gain with Briellyn birth control

Briellyn ingredients

The active ingredients in Briellyn (read: the hormones) are norethindrone acetate and ethinyl estradiol. Norethindrone acetate is a progestin and ethinyl estradiol is an estrogen — that’s what makes Briellyn a “combined” pill.

There are other birth control pills that contain these same ingredients, either in the same amounts or in different ones. Pills that are bioequivalent to Briellyn include Balziva, Ovcon 35, Zenchent, Philith, Gildagia and Vyfemia.

There are also birth control pills that contain different proportions of norethindrone acetate and ethinyl estradiol. Some of these have different doses of hormones throughout the month (Ortho-Novum), include an iron supplement in the inactive pills (Microgestin Fe) or contain the lowest daily dose of estrogen available (Lo Loestrin Fe).

Briellyn vs Balziva


Make sure you read the package insert for Briellyn before you start taking it. You can read further safety information at the link below.

More info

Briellyn warnings

Before you receive a birth control prescription, the doctor needs to know your medical history. Make sure to tell them about any conditions or illnesses, particularly any type of cancer, blood clots or a condition that puts you at a higher risk of stroke.

There is more information about warnings associated with Briellyn at the link above, as well as in the package insert that comes with your prescription. You can also talk to the doctor about any concerns during your consultation or afterwards, using the chat feature in your EveAdam account.

Briellyn interactions


[1] Kost,K, Et al. 2008. Estimates of contraceptive failure from the 2002 National Survey of Family Growth. U.S.A. N.I.H.

[Accessed 3rd July 2021]

[2] Lindh, I, Et al. 2011. The long-term influence of combined oral contraceptives on body weight. Human Reproduction. U.K. Oxford Academic.

[Accessed 4th July 2021]