Radiopharmaceutical | Physical half-life (d) | Particle type | Usual administered activity | Typical response time (d) | Typical response duration | Retreatment interval |
89SrCl2 (Metastron; GE Healthcare Ltd.) | 50.5 | β | 148 MBq | 14–28 | 12–26 wk | >3 mo |
153Sm-EDTMP (Quadramet; IBA-Molecular) | 1.9 | β | 37 MBq/kg | 2–7 | 8 wk | >2 mo |
223RaCl2 (Xofigo; Bayer Healthcare) | 11.4 | α | 50 kBq/kg × 6 every 4 wk | <10 | Unknown | Unknown |