Daysee is an extended-cycle birth control pill designed to give you only four periods a year instead of twelve. It’s a 91-day oral contraceptive pack containing two types of hormones, levonorgestrel and ethinyl estradiol, that work primarily by preventing ovulation. Unlike traditional 28-day pill packs, Daysee stretches the active hormone phase to 84 days, followed by 7 days of low-dose estrogen pills during which you’ll have a scheduled period.
How the 91-Day Pack Works
Each Daysee pack contains 91 pills split into two phases. The first 84 are light blue tablets, each with 0.15 mg of levonorgestrel (a synthetic progestin) and 0.03 mg of ethinyl estradiol (a synthetic estrogen). These are the active pills that prevent pregnancy.
The final 7 pills are mustard-colored and contain a very low dose of ethinyl estradiol (0.01 mg) with no progestin. This is the week you’ll have your period. Unlike older extended-cycle pills that used completely inactive placebo pills, the low-dose estrogen in these last 7 tablets helps reduce breakthrough bleeding and spotting, which is one of the more common complaints with extended-cycle regimens.
You take one pill per day at the same time, starting with the light blue tablets and finishing with the mustard ones. A full cycle takes 13 weeks, so over the course of a year, you complete four cycles and have four withdrawal bleeds.
Effectiveness at Preventing Pregnancy
Daysee falls into the combined oral contraceptive category, and its effectiveness matches other combined pills. With perfect use, meaning you take every pill at the same time every day without missing any, the failure rate is about 0.3% in the first year. That translates to roughly 3 pregnancies per 1,000 women.
Typical use tells a more realistic story. Accounting for missed pills, late pills, and human error, the failure rate climbs to about 9% in the first year. The gap between perfect and typical use is one of the largest among contraceptive methods, which makes consistency especially important with any daily pill.
What to Do If You Miss a Pill
Missing a single pill by less than 48 hours is relatively low-risk. Take it as soon as you remember, even if that means taking two pills in one day, and continue the rest of the pack on schedule. No backup contraception is needed.
Missing two or more consecutive pills (48 hours or more since your last dose) is more serious. Take the most recent missed pill right away and discard any other missed ones. Continue the pack on schedule, but use condoms or abstain from sex for the next 7 days while the hormones rebuild their protective effect. If those missed pills fell during the last week of active tablets, skip the mustard pills entirely and start a new pack immediately to avoid a gap in hormone coverage. If you had unprotected sex during the first week of active pills and missed doses, emergency contraception is worth considering.
Breakthrough Bleeding and Other Side Effects
Spotting or breakthrough bleeding between scheduled periods is the most frequently reported side effect of extended-cycle pills, particularly during the first few packs. Your body is accustomed to a monthly hormonal cycle, and it takes time to adjust to 84 straight days of active hormones. Most people find the spotting decreases significantly after two or three cycles.
Other common side effects are the same as those associated with any combined hormonal birth control: nausea, headaches, breast tenderness, mood changes, and bloating. These tend to be most noticeable in the first one to three months and often improve as your body adjusts.
Who Should Not Take Daysee
Daysee carries the same safety restrictions as all combined estrogen-progestin contraceptives. The biggest concern is blood clot risk. You should not use it if you smoke and are over 35, have a history of deep vein thrombosis or pulmonary embolism, or have cardiovascular conditions like coronary artery disease, uncontrolled high blood pressure, or certain heart valve disorders.
Other contraindications include:
- Migraine with aura at any age, or any migraine if you’re over 35
- Diabetes with vascular complications, or diabetes if you’re over 35
- Current or past breast cancer or other hormone-sensitive cancers
- Liver disease, including liver tumors, acute viral hepatitis, or severe cirrhosis
- Undiagnosed abnormal uterine bleeding
- Certain hepatitis C medications that can cause dangerous interactions with estrogen
Daysee vs. Seasonique
Daysee is a generic equivalent of Seasonique. Both contain the same active ingredients in the same doses: 0.15 mg levonorgestrel/0.03 mg ethinyl estradiol in the active pills, and 0.01 mg ethinyl estradiol in the final 7 pills. Both follow identical 91-day schedules. The difference is price. As a generic, Daysee typically costs less, though the exact savings depend on your insurance and pharmacy. If you’ve been prescribed Seasonique and your pharmacy substitutes Daysee, the medications are therapeutically interchangeable.
How to Start Your First Pack
The standard approach is a “Sunday start,” meaning you take your first light blue pill on the first Sunday after your period begins. If your period starts on a Sunday, you begin that same day. Because you may not be fully protected right away, using backup contraception for the first 7 days is a common recommendation when starting for the first time or switching from a different method.
After finishing all 91 pills, you start a new pack the very next day. There’s no pill-free gap between packs. The mustard pills at the end serve the same timing role that placebo pills do in a 28-day pack, keeping you in the habit of taking a pill every day so you don’t lose track of your schedule.