Is Propan with Iron safe for breastfeeding moms?

May be. this is a multivitamin preparation that contains different vitamin b components, ferrous sulfate and an antihistamine, buclizine (meclizine) which may have some side effects if excreted in breast milk, so better not to use it or use with caution, you may want to look for another multivitamin preparation, ask your doctor/pharmacist, enjoy your baby.