Etonogestrel, ethinyl estradiol



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Etonogestrel, ethinyl estradiol


NuvaRing is a soft little piece of plastic that helps prevent pregnancy. 

EveAdam is a subscription for your prescriptions. Buy NuvaRing online and get it delivered from a US pharmacy. 

From only $170.15 per month


NuvaRing is a flexible piece of plastic you insert once a month to prevent pregnancy. It stays in place for three weeks and then you take it out for a one-week break. There are two hormones in the ring that are released into the body, so it works like the combined pill — just no daily alarms.

But what if birth control could be even more convenient? EveAdam offers a subscription service for many types of hormonal birth control, including NuvaRing. After an online consultation with a licensed doctor, you’ll be able to buy NuvaRing online and get it delivered to you. Even better? You get refills on a schedule you set, so you don’t have to worry about running out of birth control again.

How does NuvaRing work?

NuvaRing is a relatively small, soft ring that sits in the vaginal canal. It releases versions of progesterone and estrogen, two hormones that naturally occur in the body. These hormones change whether you ovulate and how menstruation happens. Tl;dr? NuvaRing is very, very good at preventing pregnancy. 

Into details? We are too. Like we mentioned, NuvaRing changes how ovulation happens. In fact, it stops it. Since no egg is released by the ovary, it can’t be fertilized. NuvaRing also keeps the wall of the uterus from growing thicker with your cycle (thick wall = bad) but makes the mucus in your cervix grow thicker (thick mucus = good) so sperm can’t get through. Both of these things make it less and less likely that an egg could be fertilized and, even if fertilized, that it could lead to pregnancy. 

How effective is NuvaRing?

If you use NuvaRing exactly right, according to the instructions, it’s almost guaranteed to prevent pregnancy. If you make a mistake with it every now and again, the effectiveness drops a little, but still gives you a high level of protection.

With “perfect” use, NuvaRing is thought to be more than 99% effective.[1] In birth control terms, this means that fewer than one in 100 women using NuvaRing perfectly would become pregnant in a year.

“Typical” use, which is little closer to how real people use birth control in real life (like occasionally forgetting to insert the ring on the right day) brings the effectiveness down to 91%. This means that nine in 100 women using NuvaRing over 12 months would become pregnant.

The best way to ensure NuvaRing is as effective as possible is to follow the instructions as closely as you can.

Is NuvaRing better than the pill?

Women who don’t want the hassle of a pill every day may find NuvaRing a more low-maintenance option. It only needs to be inserted once a month and then taken out three weeks later, which saves a lot of time and remembering.

NuvaRing’s effectiveness is the same as the pill’s, but you could argue that it’s actually better. With less room for error (since you don’t have to remember it every day), you’re getting closer to “perfect” use. 

Another added benefit of a birth control ring is that your protection levels don’t change if you’re sick and experience vomiting or diarrhea. Because the pill is taken orally, what goes on with your digestive system can impact your protection. With NuvaRing? That stomach flu just got a little bit less stressful.

On the other hand, some people need an everyday routine in order to fit something into their life. So there’s not really a universally agreed upon “best” birth control. It’s all up to you and how you’d like to take it. 

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


How NuvaRing works

Each month, your body gets ready for pregnancy. The uterus grows a thicker lining to receive a fertilized egg, and an egg is released by the ovary in a process called ovulation. The reproductive cycle happens because of two hormones in the body, estrogen and progesterone. Their levels rise and fall over the course of each month.

NuvaRing contains synthetic versions of these hormones. When they’re introduced to your body, certain steps in the reproductive cycle change. Ovulation doesn’t happen, the texture of the uterine wall doesn’t change, and mucus in the cervix thickens to block sperm from getting through.

Who can use NuvaRing?

Is NuvaRing safe?

How to buy NuvaRing online

How to use NuvaRing

NuvaRing is inserted into the vagina. We recommend you see your doctor or gynecologist in person before inserting NuvaRing for the first time, as it’s a little tricky and you want to make sure you’re doing it right. After that, you can insert it on your own — once you’ve gotten the hang of it, it shouldn’t take long at all.[2] The package insert that comes with NuvaRing has more detailed info on how to insert it, but here’s the gist.

With clean hands, compress the ring between your thumb and fingers and carefully insert the tip inside the vaginal canal. Push higher until it’s firmly inside and you’re comfortable. You should be able to feel with your fingers that it’s still in place.

NuvaRing must be removed after exactly three weeks. To remove it, clean your hands and hook the ring onto one of your fingers. Then gently pull it out. NuvaRing comes with a small bag you can use to discard it. Always dispose of your NuvaRing into a trash can and not into the toilet.

If you can’t find NuvaRing when it’s time to remove it, see a doctor. It isn’t possible for the ring to become lost inside the body, so don’t panic — you might just need a little help getting it out.

NuvaRing and the 7-day break

What are the most common side effects with NuvaRing?

All medications carry the potential risk of side effects. Knowing what they are helps you know what to do if you experience any of them.

When you switch to a specific type of birth control or start using it for the first time, it’s quite common to get some initial side effects. A lot of the time, these go away on their own after a month or two of use.

The most common side effects women get with NuvaRing include abdominal pain, nausea, thrush or other yeast infections, vaginal discomfort caused by the ring, itching, vaginal secretion, headaches or migraines, depressive moods, lower sex drive, breast pain, pelvic pain, painful menstrual periods, acne, weight gain or the ring becoming dislodged and falling out.

What should I do if I get side effects?

When should I see a doctor?

What are some alternatives to NuvaRing?

There are several types of birth control ring available including NuvaRing, Annovera and EluRyng.

NuvaRing and EluRyng are similar in concentration, meaning they have the same active ingredients at the same dosage.

Annovera is slightly different, and has a higher progestin concentration and a lower estrogen level. It’s a better choice for women who want to use the birth control ring but have a slight sensitivity to estrogenic side effects.

One advantage of NuvaRing over combined oral contraceptive pills is that you don’t need to take it every day. One ring lasts for three weeks, followed by a week-long break, which adds up to an entire month of coverage.

But for women who don’t want to use a vaginal ring, the combined pill or the birth control patch may be a better option. They’re just as effective as the birth control ring, but you need to take the pill daily and change the patch weekly.

What should I do if NuvaRing doesn’t work?

NuvaRing vs. Annovera: which is better?


Before you use the vaginal ring, consult the package insert, and let the doctor know about any side effects you get.

More info

NuvaRing side effects

Common side effects (affecting up to 1 in 10 people) of NuvaRing are abdominal pain, feelings of sickness, yeast infections such as thrush, discomfort in the vagina due to the ring, genital itching, vaginal secretion, headaches, migraines, depressive moods, lower sex drive, pain in the breasts, pelvic pain, painful menstrual periods, acne. 

Uncommon side effects (affecting up to 1 in 100 people) of NuvaRing are visual changes or disturbances, dizziness, swollen abdomen, vomiting, diarrhea or constipation, feeling tired or unwell, irritability, mood changes or swings, edema, bladder infection or UTI, pain or difficulty passing urine, the strong desire to pass urine, passing more urine than is normal, pain or other problems during intercourse, bleeding, your partner feeling the ring, increased blood pressure, increased appetite, back pain, muscle spasms, pain in the legs or arms, less sensitive skin, sore or larger breasts, cysts in the breasts which may swell or become painful, cervical inflammation or growths, menstrual period changes, pelvic discomfort, premenstrual syndrome, spasms of the uterus, vaginal infection, burning, smell, pain, discomfort or vaginal dryness, hair loss, eczema, itching, rash or flushes.

NuvaRing contraindications

NuvaRing with other medicationss


[1] Roumen, F.J.M.E., Apter, D., Mulders, T.M.T. and Dieben, T.O.M. (2001). Efficacy, tolerability and acceptability of a novel contraceptive vaginal ring releasing etonogestrel and ethinyl oestradiol. Human Reproduction, 16(3), pp.469–475.

[Accessed 2nd July]


[2] Novák, A., de la Loge, C., Abetz, L. and van der Meulen, E.A. (2003). The combined contraceptive vaginal ring, NuvaRing®: an international study of user acceptability. Contraception, 67(3), pp.187–194.

[Accessed 1st July 2021]