Has anyone who had previously taken Singulair (monteleukast) for asthma developed Churg Strauss syndrome afterwards? I took Singulair for over a year, gained a fair amount of weight from it, and went off of it. A year later I began having symptoms of vasculitis, along with swollen glands in my arms, and an elevated eosinophil count. Now my physicians are hypothesizing that I have developed an early stage of Churg Strauss, an autoimmune vasculitis disorder. Anyone else in this boat? I thought I was helping deal with asthma, and now I'm worried that I have something far more complicated. Sometimes I think I would just be better off with homeopathy than all these meds!