What Is Camrese 91 Day?

Camrese 91 Day is a prescription birth control pill designed to give you fewer periods — just four per year instead of twelve. It's an extended-cycle oral contraceptive, meaning you take active pills for 84 days straight before having a scheduled period.

Camrese 91 Day contains two hormones:

• Levonorgestrel — a synthetic progestin
• Ethinyl estradiol — a synthetic estrogen

It belongs to the same family of medications as Seasonique and Seasonale. In fact, Camrese 91 Day contains the exact same active ingredients as Seasonique and is considered therapeutically equivalent. Generic versions include Amethia, Daysee, and Jaimiess.

What Is Camrese 91 Day Used For?

Camrese 91 Day is FDA-approved for one purpose: preventing pregnancy. However, doctors also prescribe it off-label for several other conditions:

• Menstrual suppression — Reducing the number of periods you have each year
• Endometriosis symptom management — Fewer periods can mean less endometriosis-related pain
• Heavy menstrual bleeding (menorrhagia) — Extended-cycle pills can reduce overall blood loss
• Painful periods (dysmenorrhea) — Fewer cycles often means less cramping
• PMS and PMDD symptom reduction — Stabilizing hormone levels can ease premenstrual symptoms
• Acne management — Hormonal birth control can improve acne in some people

How to Take Camrese 91 Day

Each Camrese 91 Day pack contains 91 pills total:

• 84 light blue-green active tablets — Each contains levonorgestrel 0.15 mg and ethinyl estradiol 0.03 mg
• 7 yellow tablets — Each contains ethinyl estradiol 0.01 mg (a low dose of estrogen only)

Here's how to take it:

1. Take one pill every day at the same time for 91 consecutive days
2. Start with the 84 light blue-green pills
3. Then take the 7 yellow pills (you'll have a light period during this time)
4. Start your next pack the day after your last yellow pill — don't skip any days

When to Start

You can start Camrese 91 Day in two ways:

• Day 1 Start: Take your first pill on the first day of your period. No backup contraception needed.
• Sunday Start: Take your first pill on the first Sunday after your period begins. Use backup contraception (like condoms) for the first 7 days.

What If You Miss a Pill?

If you miss one active pill, take it as soon as you remember. If you miss two or more active pills, refer to the detailed instructions in your pill pack. You may need to use backup contraception. Missing pills during the yellow-pill phase is less critical, but try to stay on schedule.

Important Safety Information

Camrese 91 Day is safe for most people, but there are important things to know:

Boxed Warning: Smoking

Cigarette smoking increases the risk of serious cardiovascular side effects when taking oral contraceptives. This risk increases with age and the number of cigarettes smoked. Women over 35 who smoke should not use Camrese 91 Day.

Who Should NOT Take Camrese 91 Day

Do not take Camrese 91 Day if you have:

• A history of blood clots, stroke, or heart attack
• Known or suspected breast cancer
• Liver disease or liver tumors
• Undiagnosed abnormal uterine bleeding
• Migraines with aura
• Uncontrolled high blood pressure
• Diabetes with vascular complications
• Are pregnant or think you might be pregnant

For a full list of side effects to watch for, read our guide: Camrese 91 Day Side Effects: What to Expect.

How Effective Is Camrese 91 Day?

When taken correctly (one pill at the same time every day), combined oral contraceptives like Camrese 91 Day are about 99% effective at preventing pregnancy. With typical use (accounting for missed pills and late doses), effectiveness drops to about 91%. Taking your pill at the same time every day is the most important thing you can do to maximize effectiveness.

Certain medications can reduce the effectiveness of Camrese 91 Day, including some antibiotics, seizure medications, and the herbal supplement St. John's Wort. Learn more in our guide to Camrese 91 Day drug interactions.

How Much Does Camrese 91 Day Cost?

Brand-name Camrese 91 Day costs between $150 and $300 per 91-day pack without insurance. Generic versions typically cost $30 to $90 with a discount card.

The good news: most insurance plans cover Camrese 91 Day or its generics with a $0 copay under the ACA contraceptive mandate. If cost is a barrier, check out our guide on saving money on Camrese 91 Day.

Finding Camrese 91 Day

Camrese 91 Day has experienced some supply challenges in 2026. If you're having trouble finding it, use MedFinder to check pharmacy stock near you. You can also ask your pharmacist about generic alternatives.

Bottom Line

Camrese 91 Day is an extended-cycle birth control pill that reduces your periods to four times a year. It's effective, widely covered by insurance, and available in several generic versions. Take it at the same time every day for the best results, and talk to your doctor if you have questions about whether it's right for you.