Daysee is a prescription birth control pill used to prevent pregnancy. It is a combined oral contraceptive that works by stopping ovulation and altering the lining of the uterus and cervical mucus. As an extended-cycle contraceptive, each pack contains 91 pills, which means you will only get a period four times a year. Side effects include nausea, headaches, and breast tenderness.

What Is Daysee?

Daysee™ (levonorgestrel/ethinyl estradiol) is a birth control pill that is a generic version of Seasonale®. Because Daysee is an "extended-cycle" oral contraceptive, you will get your period only four times a year (once every three months) with it.
(Click What Is Daysee Used For? for more information on this topic, including possible off-label uses.)

Are There Side Effects?

Just like any medicine, Daysee can cause side effects. However, not everyone who uses the contraceptive will experience problems. In fact, most women tolerate it quite well.
If side effects do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider. Serious reactions are less common.
Common side effects of most birth control pills, including Daysee, include but are not limited to:
  • Nausea
  • Vomiting
  • Breakthrough bleeding or spotting between periods
  • Breast tenderness
  • Headaches.
(Click Daysee Side Effects to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)
Last reviewed by: Kristi Monson, PharmD
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