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Levonest is a generic version of Triphasil, a birth control pill. As a combined contraceptive, it contains two different hormones that work together to prevent pregnancy. This medication comes in the form of a tablet that is taken once a day, at the same time each day. Although most women tolerate it well, this drug can cause side effects, such as nausea, breast tenderness, and headaches.
- Breakthrough bleeding or spotting between periods
- Nausea or vomiting
- Breast tenderness.