No but i will make the alittle baby sleepy.
You need to ask your doctor or a pharmacist if the medication is safe before you try to breastfeed with it. Some medications can transfer into breast milk, even certain pain medicines, which can unintentionally sedate your baby among other things which are not good for baby. Some medications are safe to take while breastfeeding, but only your doctor or a pharmacist can tell you for sure.