I found this today. http://www.medscape.com/viewarticle/568424

I've heard nothing of this anywhere else. So when did the manufacturer plan on telling me that all this muscle pain I've suffered from for almost 10 years was caused by their drugs??!! We have tested me for fibromyalgia; myasthenia gravis; a type of arthritis that causes muscle pain whose name escapes me right now; every thing known to cause muscle pain. They finally settled on fibro-like disease. This was years before the RA became prominent. And in spite of their precious medication, I have 9 broken bones with no falls to cause them. Only a slight loss of balance on the last one, didn't fall.

Am I ticked????!! You betcha!!!

Billye