How do you take Yaz?

Yaz comes in a pack of 28 tablets. There are 24 active tablets in each pack, along with four inactive tablets that do not contain any hormones.

You may start the pill on any day of your cycle, but you should use backup birth control (like condoms) for two weeks until the pill becomes effective. If you miss a pill, please refer to this website from the Society of Obstetricians and Gynecologists of Canada about what to do next: