Yes, nearly all pain and fever-relieving medications are safe. Acetaminophen (Tylenol and other brands) is the safest medication for relieving pain and fever, since only a tiny amount enters the breastmilk. Ibuprofen is also considered safe. Narcotic analgesics (codeine, Demerol, and morphine) are safe to take while breastfeeding, yet they should be used with caution. Of the three, morphine has been shown to have the least effect on infants. Breathing difficulties have been reported in newborns whose mothers received codeine-containing analgesics after delivery, and some babies may become sleepy and less eager to nurse following Demerol injections in their mothers. While occasional use of narcotic pain relievers is acceptable during breastfeeding, prolonged use is considered unsafe. On the other hand, consider the fact that pain suppresses lactation. It is always possible to work out an analgesic regimen that is both effective for mother and safe for baby.