Drospirenone, ethinyl estradiol



From only$164.28 per month

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Drospirenone, ethinyl estradiol


Yaz is a combined birth control pill. It’s more than 99% likely to prevent pregnancy when used right.

Consult with a doctor to get birth control recommendations and buy Yaz online with a refill subscription.

From only $164.28 per month


Yaz is a birth control pill (or “oral contraceptive” if you’re fancy) you take at the same time every day. It’s made by Bayer and each pack contains 28 pills: 24 active pills with hormones and 4 inactive pills. In addition to preventing pregnancy, Yaz is also prescribed to women with premenstrual dysphoric disorder (PMDD).

When you buy Yaz online through EveAdam, you have a consultation with a licensed doctor who makes sure it’s the right pill for you. Your prescription is then sent to our preferred online pharmacy and 2-5 working days later, Yaz shows up at your door. Your EveAdam subscription includes refills, sent automagically on a schedule you set. Every month? Sure. Every six months? You got it. We’re all about taking the hassle out of birth control, so skip the phone calls and the pharmacy lines — give us a go today.

How does Yaz birth control work?

There are two hormones in Yaz: drospirenone and ethinyl estradiol. These are very similar to progesterone and estrogen, hormones which naturally occur in your body.

Stop us if you’ve heard this, but the female body gets ready for pregnancy every month as part of the menstrual cycle. Natural hormone levels rise and fall, kickstarting ovulation and other processes. Ovulation is when an egg is released from the ovary, and travels along the fallopian tube to the uterus. If that egg is fertilized, it implants on the wall of the uterus and starts developing into a fetus (and eventually, a baby).

When someone takes Yaz, the hormones in it trick the body into thinking that ovulation has already happened, so no egg is released. These hormones also stop the wall of the uterus from getting thicker, which makes it more difficult for a fertilized egg to settle there. They also change the consistency of cervical fluid, so sperm can’t swim through to the egg. That’s a whole lot of words to say Yaz makes it really, really hard to get pregnant. 

Is there a Yaz generic available?

Yes. There are several other pills that contain the same amount of the very same active ingredients. Nikki, Gianvi, Lornya, Vestura, Lo-Zumandimine and Jasmiel all contain the same hormones.

They should all work in exactly the same way in the body, be just as effective at preventing pregnancy and have the same side effect profile. But they may look different, and be produced by different pharma companies.

Getting Yaz online

We get it. Making an appointment with your doctor, taking time off work to get there, constant trips to the pharmacy and then doing it all again just to renew your prescription… Birth control is time consuming. Here at EveAdam, we want to make it easier. 

Take our online consultation to get birth control recommendations from a board-certified physician. Your selected option will then be dispensed from our preferred pharmacy and shipped to you in discreet packaging. Most orders arrive 2-5 days after approval from the doctor.

Once you subscribe to a tailored plan, we remember you. Meaning your birth control will be delivered regularly, to your door, whenever you need it. 

Page reviewed by:
Dr Bruce Oran
Dr Bruce Oran
Senior Medical Adviser
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Last updated September 3, 2021


What is Yaz?

Yaz is a combined oral contraceptive pill (COCP). It’s a cyclical pill you take every day. There are two synthetic hormones in it that intervene with a normal menstrual cycle, and stop the body from getting ready to become pregnant.

A pack of Yaz pills contains 24 active and four inactive pills. The four inactive pills are spacers, which you take until you’re ready for your next pack. Some other types of birth control don’t have spacers, and you take a several-day break instead. With Yaz, you keep taking a pill every day, so it’s easier to make it part of your daily routine.

What are synthetic hormones?

Can I take Yaz for acne?

Does Yaz cause weight gain?

Can I take Yaz for PMDD?

Is Yaz safe?

How to buy Yaz online

How to use Yaz

Yaz needs to be taken at the same time each day, so decide on a time that’s best for you before taking your first pill. You can take Yaz with or without food.

You’ll see that each pill packet contains 28 pills. There are 24 “active” light pink pills, to be taken daily for 24 days. This is followed by four inactive pills taken for four days.

The total number of pills comprises the 28-day menstrual cycle. After you’ve taken the fourth inactive pill, you start a new pack on the next day.

If you miss a Yaz pill

Yaz with food and alcohol

What is the effectiveness rate for Yaz?

What are the most common side effects of Yaz?

Common adverse effects associated with Yaz can include spotting in between periods, nausea, breast tenderness and headaches.

These side effects can be a sign of your body adjusting to the hormones in the pill. Oftentimes they will go away on their own after a few weeks.

What should I do if I get side effects?

When should I see a doctor?

Is there a Yaz generic brand?

Yes, there are several. Nikki, Gianvi, Loryna, Vestura, Lo-zumandimine and Jasmiel are all very similar pills to Yaz, and work in exactly the same way.

They may not be made by the same company, so the pills and the packaging may look different. But there shouldn’t be any differences in how effective they are. Nikki and Loryna tend to be cheaper than Yaz.

Gianvi vs Yaz: What’s the difference?

What if I want to switch from Yaz to another pill?

Yaz vs. Yasmin: Which is better?


Please read the package insert prior to using Yaz for birth control.

More info

Yaz side effects

Common side effects (up to 1 in 10 of every 100 patients): mood swings, headaches, nausea, breast pain, problems with periods such as them being irregular or absent. 

Uncommon side effects (up to 1 in 10 of every 1000 patients): depression, decreased interest in sex, nervousness, sleepiness, dizziness, “pins and needles,” migraines, varicose veins, a rise in blood pressure, stomach aches, vomiting, indigestion, intestinal gas, inflammation of the stomach, upset stomach and diarrhea, acne, itching, rash, aches and pains, vaginal infection such as thrush, pelvic pain, breast enlargement, benign breast lumps, vaginal bleeding (this normally goes away if treatment is continued), vaginal discharge, hot flashes, inflammation of the vagina, period problems such as painful, reduced or very heavy periods, vaginal dryness, lack of energy, increased sweating, fluid retention and weight increase. 

Rare side effects (up to 1 in 10 of every 10,000 patients): fungal infection, allergic reaction, endocrine, increased appetite, loss of appetite, abnormally high concentration of potassium in the blood, low concentration of sodium in the blood.

This is not a comprehensive list of side effects. Please refer to the package insert for further information.

Yaz warnings


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


[Accessed 5th July 2021]


[2] Cooper, D.B. and Mahdy, H. 2020. Oral Contraceptive Pills. Stat Pearls. U.S.A. NCBI. 


[Accessed 6th July 2021]