Why are the pills 4 different colors?

    • ORTHO TRI-CYCLEN® LO is a 28-day birth control regimen. There are 21 "active" pills (7 white pills, 7 light blue pills, and 7 dark blue pills) with hormones to take for 3 weeks. This is followed by 7 green pills to take for 1 week. The green pills contain no active ingredient but are intended to help you to remember take your pills correctly. Your ORTHO DIALPAK® Tablet Dispenser is labeled with the days of the week, so you'll know exactly which pill to take each day. Be sure to take a pill every day at the same time. Once you have taken the last green pill, begin a new cycle of pills.