>>>This mother was prescribed this cream to apply to a wart on the sole of her foot. She is breastfeeding a toddler. She has discontinued its use but was told the drug would stay in her system for up to a month. <<< Janaki, The adult half-life of Fluorouracil, according to Hale's book 1996, is only 11 MINUTES! Where in the world did someone get the idea a significant amount would stay in mother's system for a month???? Natalie Shenk BS IBCLC Ohio USA