Why Stop Now? Extended and Continuous Regimens of Combined Hormonal Contraceptive Methods.

Combined hormonal contraceptives (CHCs) have traditionally been prescribed in 28-day cycles, with 21 days of active hormones followed by a 7-day hormone-free interval. Extended and continuous CHC regimens, defined as regimens with greater than 28 days of active hormones, offer many benefits, including a decrease in estrogen-withdrawal symptoms and likely greater efficacy because of more reliable ovulation suppression. Bleeding profiles are favorable, and unscheduled bleeding decreases over time with these regimens. Extended and continuous regimens of combined oral contraceptives and the contraceptive vaginal ring are safe and have high user acceptability and satisfaction. However, despite numerous benefits, extended and continuous CHC regimens are underused.