Is Samarium Sm 153 Lexidronam Pentasodium Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use Samarium Sm 153 Lexidronam Pentasodium? Is Samarium Sm 153 Lexidronam Pentasodium safe for nursing mother and child? Does Samarium Sm 153 Lexidronam Pentasodium extracts into breast milk? Does Samarium Sm 153 Lexidronam Pentasodium has any long term or short term side effects on infants? Can Samarium Sm 153 Lexidronam Pentasodium influence milk supply or can Samarium Sm 153 Lexidronam Pentasodium decrease milk supply in lactating mothers?

Information in this record refers to the use of samarium Sm 153 lexidronam pentasodium as a therapeutic agent. No information is available on the use of samarium Sm 153 lexidronam pentasodium during breastfeeding. Most conditions treated with samarium Sm 153 would not occur in mothers wishing to nurse. However, the manufacturer recommends not administering the drug in women who wish to continue breastfeeding. Because of the relatively long half-life of samarium 153, the standard waiting period of 10 half-lives would be close to 3 weeks which might be impractical for resuming breastfeeding. The manufacturer and expert opinion recommend discontinuing breastfeeding if the agent is administered.[1] Mothers concerned about the level of radioactivity in their milk could ask to have it tested at a nuclear medicine facility at their hospital. When the radioactivity is at background levels they may safely resume breastfeeding. A method for measuring milk radioactivity and determining the time when a mother can safely resume breastfeeding has been published.[2]