after receiving my first monthly Xgeva injection I experienced a moderate cytokine release syndrome for several days: high fever, rapid heart rate, uncontrolled chills, and shaking, low oxygen, crackling lungs, pneumonia-like symptoms, severe headache…..
Felt better after approximately 10 days and then had stabilized ALP (no progression on bone scans )for the next four months and slowed PSA rise significantly. Did not receive any additional injections as the first injection was only meant for 30 days, but decided not to receive more after initial reaction.