I took Sronyx for 2 months. At the end of the 2 months, I had shortness of breath. The major awakening came about when I began to hyperventilate and passed out. The diagnosis was bi-lateral pulmonary emboli, blood clots in both lungs. I am now on coumadin for 6 months. I am a healthy woman who works out everyday. This episode has effected changes in my life.