The effects of anesthesia or sedatives used during a colonoscopy typically clear from the body within approximately 24 hours. While the transfer of these medications into breast milk is generally considered low-risk, it is advisable to take certain precautions. Before the procedure, consider breastfeeding your baby or pumping and storing milk for later use. If storing milk is not feasible and breastfeeding is immediately necessary, you may pump and discard the initial amount of milk before feeding your baby.