Above post, I believe is a centrifuge spin for urine. A special urine spin that is done within minutes. I will look into it, can't remember the original article, as it was back in 2012. This man's diagnosis was based on this alone, with symptoms. Negative biopsy, negative Canca. Kidney doc, spun his urine, listened to the patient aand treated. Ignore that extra a. Good kidney doctor! I saw one in 2012, and when I mentioned wegeners, she wrapped things up, stating its to rare! Rare my a**!!! Birdie, I think any med change, in dosage or med itself, will cause more symptoms until you're body adjusts to the change, or you're doctor goes back to the other regime. I mean simple stree can effect ya, so you can imagine what a med change can do? It's such a weird sucky sickness, with a mind of its own! Deb.