Pulmonary Embolism Support Group
By far the most common form of pulmonary embolism is a thromboembolism, which occurs when a blood clot, generally a venous thrombus, becomes dislodged from its site of formation and embolizes to the arterial blood supply of one of the lungs. Symptoms may include difficulty breathing, pain during breathing, and more rarely circulatory instability and death.
I'm aware of the the issues with Yaz. I just think it's hard to be objective about what should be considered the "most important" information to include, if you've suffered a clot.
For anyone else wanting to read the entire info go to rxlist.com