Yaz, Yasmin, and Mya: An Overview of Drospirenone Birth Control Pills in Canada

Yaz, Yasmin, and Mya come up regularly when people in Canada start looking into the birth control pill, and they’re easy to confuse. All three are built around the same active ingredients — a progestin called drospirenone and an estrogen called ethinyl estradiol — so they have a great deal in common. However, there are some differences in terms of how much estrogen each pill contains, how the pack is scheduled, and whether you end up with a brand-name pill or its generic.

In short, Yaz is the original low-estrogen pill, and Mya is its generic. Yasmin is the older, slightly higher-estrogen relative. All three are approved in Canada for preventing pregnancy and treating moderate acne, but they aren’t interchangeable in every respect, and the differences can matter depending on your circumstances.

This article covers what each pill is, how drospirenone works, and how Yaz, Yasmin, and Mya compare. We also look at the side effects they share, the blood-clot question you may have read about, and what they cost in Canada.

An Overview of Yaz, Yasmin, and Mya Birth Control

Yaz, Yasmin, and Mya are all combined oral contraceptives — the kind of birth control usually just called “the pill.” Combined means each one uses two hormones: a progestin (drospirenone) and an estrogen (ethinyl estradiol). That shared formula is why the three work in such similar ways, and why their benefits, risks, and side effects overlap as much as they do.

Yaz pairs 3 mg of drospirenone with a low 20 mcg dose of estrogen, taken on a 24/4 schedule (24 active pills followed by 4 inactive ones). Mya is Yaz’s generic, made by Apotex, with the identical hormones at the identical doses on the same 24/4 schedule. Yasmin carries the same 3 mg of drospirenone but a higher 30 mcg dose of estrogen, on the 21/7 schedule (21 active pills, then a hormone-free week), and comes in both 21-pill and 28-pill packs.

In Canada, Yaz, Yasmin, and Mya are approved for preventing pregnancy and treating moderate acne. If you’ve seen Yaz described as a treatment for premenstrual dysphoric disorder (PMDD), that comes from its US labelling. Health Canada hasn’t approved Yaz, Yasmin, or Mya for PMDD, so here, that use is off-label.

How Drospirenone Birth Control Works

Like any combined pill, Yaz, Yasmin, and Mya prevent pregnancy by stopping ovulation. They also thicken cervical mucus and thin the lining of the womb, which adds further barriers to pregnancy (though these are considered supporting effects rather than the main action).

A second set of properties that can help manage acne sets drospirenone apart from many other birth control pills. Drospirenone is mildly anti-androgenic, meaning it works against the male-type hormones (androgens) that drive oil production in the skin. Less androgen activity tends to mean less oil, and over time, fewer breakouts. This is why all three pills are approved for treating moderate acne alongside contraception.

Drospirenone has a mild effect on the body’s salt and water balance. For most people, this makes little difference day to day. However, it’s the reason Yaz, Yasmin, and Mya carry a few specific cautions around potassium for anyone with kidney, liver, or adrenal problems.

Yaz Birth Control

Yaz birth control is the original drospirenone pill, made by Bayer and on the Canadian market since 2009. Mya is the generic version of Yaz.

The defining feature of Yaz is the 24/4 schedule. Because only four of the 28 pills are inactive, the hormone-free stretch each month is short. This usually means a shorter, lighter withdrawal bleed than an older 21/7 pill (like Yasmin) gives. Yaz is approved both to prevent pregnancy and to treat moderate acne from age 14 onward, as long as contraception is also wanted.

There’s also a version called Yaz Plus, which adds folate (a B vitamin) to the same drospirenone-and-estrogen combination. It’s a niche variation rather than a different pill, approved for women 18 and older.

Yasmin Birth Control

Yasmin birth control is the higher-dose option of the three pills. It has the same 3 mg of drospirenone as Yaz and Mya, but with 30 mcg of estrogen instead of 20 mcg. Yasmin runs on a 21/7 schedule and comes in two versions — Yasmin 21 (21 active pills, then a 7-day break) and Yasmin 28 (the same active pills plus 7 reminder pills).

Like Yaz, Yasmin is approved to prevent pregnancy and to treat moderate acne, though the acne approval starts at age 16 rather than 14 (a small difference in the Canadian labelling between the two brands).

You may also see Yasmin used for the symptoms of polycystic ovary syndrome (PCOS). Combined pills are commonly prescribed for this, but in Canada, it’s an off-label use, as the evidence specific to drospirenone in PCOS remains limited.

Mya Birth Control

Mya birth control is the generic version of Yaz, made by Apotex. It contains the same 3 mg of drospirenone and 20 mcg of estrogen, on the same 24/4 schedule (24 active pills and 4 inactive, in a 28-day pack). It also carries the same Canadian approvals for contraception and moderate acne. The practical differences between Mya and Yaz come down to price and the look of the tablet, not how the pill works.

Is Mya the Same as Yaz?

For all practical purposes, yes. Health Canada lists Mya as a generic of Yaz, which means it’s been assessed as delivering the identical hormones, at the identical doses, in the way the body absorbs them. The active ingredients are the same, so Mya works the same way Yaz does, with the same benefits and the same range of side effects.

Being a generic, Mya is usually the cheaper of the two, and its inactive ingredients and tablet markings aren’t identical to Yaz’s. None of that changes how well it prevents pregnancy or treats acne. If your prescription said Yaz but the pharmacy gave you Mya, it’s simply the same medicine under a generic label.

Yaz vs Yasmin: Which Pill Suits Whom

The choice between Yaz and Yasmin really comes down to estrogen: 20 mcg on Yaz’s 24/4 schedule, or 30 mcg on Yasmin’s 21/7 (Mya, as Yaz’s generic, is the same as Yaz for this comparison). Both pills contain the same amount of drospirenone, so the difference comes down to the estrogen dose, which is higher in Yasmin, and the length of the hormone-free break, which is shorter on Yaz and Mya. Those two things mainly shape your bleeding pattern and how much hormone you take overall.

The lower-estrogen approach (Yaz and Mya) keeps your total hormone exposure to a minimum, and the shorter four-day break tends to give a shorter, lighter withdrawal bleed compared to Yasmin. The main trade-off is that a lower estrogen dose can make breakthrough spotting a little more likely in the early months.

Yasmin’s higher 30 mcg estrogen dose can offer firmer cycle control compared to Yaz, which sometimes makes it the steadier choice for people who run into irregular or breakthrough bleeding on a lower-dose pill. The flip side is slightly more estrogen than some people want or need.

The choice between Yaz vs Yasmin depends on your priorities and how your body responds, which is something to discuss with your doctor. If your aim is the least estrogen possible, there’s a lighter option still — Lolo, a 10 mcg pill that sits a step below all three (you can read our Lolo article here).

Side Effects of Yaz, Yasmin, and Mya

Because all three pills share the same hormones, the side effects of Yaz, Yasmin, and Mya are essentially the same. Most are mild and tend to ease over the first few cycles as your body adjusts.

The more commonly reported side effects include:

• Headache or migraine
• Nausea
• Breast tenderness
• Spotting between periods, or a lighter or absent withdrawal bleed
• Mood changes

Most people who start one of these pills stay on it, and only a small number stop because of side effects like these. Regarding weight gain, there is no strong evidence that combined contraceptive pills like Yaz, Yasmin, or Mya cause meaningful weight gain.

Blood Clots and Yaz

Like all combined pills, Yaz, Yasmin, and Mya carry a small increase in the risk of blood clots. This risk appears somewhat higher with drospirenone pills than with older formulations built around a progestin called levonorgestrel. Health Canada puts the risk at roughly 1.5 to 3 times greater.

In plain numbers, that’s a shift from a risk of blood clots in about 1 in 10,000 women a year on an older pill to somewhere around 1.5 to 3 in 10,000 on a drospirenone pill. The risk is real, but still small, and well below the clot risk that comes with pregnancy itself. Most of this evidence comes from the 30 mcg Yasmin, and whether the lower-dose Yaz and Mya carry quite the same risk isn’t firmly settled.

Who Should Not Take Combined Contraceptive Pills

Combined pills aren’t the right choice for everyone. Doctors generally avoid them in people who:

• Smoke and are over 35
• Have had a blood clot or have a clotting disorder
• Get migraines with aura
• Have certain cancers, uncontrolled high blood pressure, or liver disease

Because of drospirenone’s effect on potassium, Yaz, Yasmin, and Mya aren’t recommended for people with kidney, liver, or adrenal problems (or alongside certain medications). Your doctor will go through your health history to make sure a drospirenone pill is safe before prescribing.

Yaz, Yasmin, and Mya Cost and Coverage in Canada

What you pay for any of these pills depends on your province, insurance, and pharmacy, so treat any figure as a rough guide. As a general rule, the brand-name pills (Yaz and Yasmin) cost more than the generic (Mya).

Coverage varies across the country. British Columbia, for example, covers prescription contraception for residents at no cost. However, brand and generic are covered differently. Mya, as the generic, is fully covered, while Yaz and Yasmin are only partially covered.

Yaz, Yasmin, and Mya are all prescription-only in Canada, so you’ll need a prescription to get started.

Frequently Asked Questions

Is it normal to have no period on Yaz or Mya? It can be. On lower-estrogen pills, some cycles bring a very light bleed or none at all. As long as you’ve taken your pills correctly, a missing withdrawal bleed usually isn’t a sign of pregnancy. If you’ve missed pills, or you go two cycles in a row with no bleed, take a pregnancy test and check with your doctor or pharmacist.

Is there a generic version of Yasmin, like Mya is for Yaz? Mya is the generic of the 20 mcg Yaz, and there are separate generics of the 30 mcg Yasmin too. They contain the same hormones at the same dose as the brand.

Can I switch between Yaz, Yasmin, and Mya? Switching between Yaz and its generic Mya is straightforward, since they’re the same pill. Moving between Yaz or Mya and Yasmin is a bigger change because the estrogen dose differs, so that’s a decision to make with your doctor.

Are Yaz, Yasmin, or Mya Right for You?

Yaz, Yasmin, and Mya are well-established combined birth control pills that provide reliable contraception, and for many people, an improvement in moderate acne. Whichever of the three you take, the progestin (drospirenone) is the same. The differences come down to the estrogen dose, the brand-versus-generic price, and which pill your body settles on most comfortably.

For most people, the choice is less about finding a single “best” pill and more about fit. The lower-estrogen Yaz and Mya suit those who want minimal hormones and a shorter period, while Yasmin’s higher dose can give steadier cycle control.

A doctor can help you weigh up the right oral contraceptive pill, taking your full history into account before deciding which option may be the best fit.

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