MedicineNet reports that ibuprofen, the generic form of Advil, is excreted in breastmilk but is safe to use when breastfeeding. Infants are treated with higher doses of ibuprofen than the amount excreted in breastmilk, Drugs.com explains, so ibuprofen is recommended for women who require analgesics or anti-inflammatory medications while breastfeeding.
Drugs.com notes that Advil is a nonsteroidal anti-inflammatory medication that decreases the hormones that cause discomfort and inflammation. It is effective in reducing fever and alleviating pain and inflammation due to headache, menstrual cramps, toothache, arthritis and minor injuries. Taking Advil in higher doses or more often than directed can cause bleeding in the digestive tract.