Quarette is an ascending-dose, extended regimen oral contraceptive comprised of levonorgestrel/ethinyl estradiol and ethinyl estradiol. Levonorgestrel is a progestin and ethinyl estradiol is an estrogen. Quarette prevents conception primarily by suppressing ovulation. It may also induce cervical mucus changes that inhibit sperm penetration and endometrial changes that reduce the likelihood of implantation.
Quartette is specifically indicated for use by females of reproductive age to prevent pregnancy.
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Adverse events associated with the use of Quartette may include, but are not limited to, the following:
heavy/irregular vaginal bleeding
Quartette should be administered once a day by mouth at the same time every day for 91 days. To achieve maximum contraceptive effectiveness, Quartette must be taken exactly as directed and at intervals not exceeding 24 hours.