I read that too about cipro. Also, my arm tendon was damaged long ago, so one push from this medication could have made it much worse. Of course, I was pregnant thou it was long time ago, but it could made some damage too.
Currently I am going to physiotherapy and I use hand brace, but I still have a lot of spasms, especially at night. I have to take some muscle relaxers to sleep, because it's waking me up.
My tendinosis is weird since it's not painful, well, almost not. But the spasms in hand are scary as hell, especially as I feared it's something neurological (i still hope it's not).