Side Effect Profiles of Brand Name Versus Generic Oral Contraceptives

This is a double blind randomized controlled trial of Ortho tricyclen™ vs. Trinessa™ (generic equivalent) to determine if they have similar effects on bleeding patterns, namely days of menstrual flow, amount of bleeding, and intermenstrual bleeding. Women will score these parameters using a survey with objective measures for days of bleeding, amount of flow, and days of breakthrough bleeding. As secondary outcomes, we will compare the side effect profiles of each in regards to nausea, vomiting, breast tenderness, menstrual cramps, mood changes, and thromboembolic events. Patients will record in their daily diary if one of the outcomes occurs or not. We will observe whether the events occur and the number of occurrences within the six month time period.