I was recently diagnosed with mm in the beginning of the year as result of stage 5 kidney dysfunction. I started induction treatment of DVD. On my 4th cycle of treatment I was given my first shot of Xgeva. Few days later I notice pain in my left arm, not sure if it is bone pain or muscle pain. Has anyone experience this? My Dr. recommend adding cytoxin to my current treatment. I would like a feedback to cytoxin.