How do I determine if a medication is safe for a breastfeeding mother? Have you ever been told you need to stop breastfeeding because you need medical testing or a medication? Or told that you cannot receive treatment until you are done breastfeeding? Avoiding breastfeeding for 3 to 4 hours after a dose should decrease the exposure of the infant to ciprofloxacin in breastmilk. Maternal use of an ear drop or eye drop that contains ciprofloxacin presents negligible risk for the nursing infant.