It’s generally safe to take Imodium while breastfeeding, but use some caution. 

Imodium, or loperamide¹ , is a medication used to slow down digestion and treat diarrhea. According to research, including studies published in the Journal of Human Lactation² , only small amounts of Imodium are likely to pass into breast milk.

Because of this, organizations like the American Academy of Pediatrics say that occasional use of Imodium is generally okay for breastfeeding. However, it's still always a good idea to be cautious. Some reports suggest that, in rare cases, infants might experience side effects like constipation or sedation.

Given these potential issues, it's always a smart move to check with your healthcare provider before taking Imodium or any other medication while breastfeeding.