What are the side effects of Yaz?

With Yaz, there is the rare but serious side effect of blood clots.

Shortness of breath, chest pain (particularly with deep breathing), coughing up blood, persistent leg pain, or redness, swelling, or warmth in your lower legs (usually one-sided) can all be indications of a blood clot in the legs or lungs, and should never be ignored.

Please seek medical attention promptly if this occurs, in the emergency department.