If acetaminophen tablets are taken while breastfeeding, breastfeeding is not recommended and it is best to stop breastfeeding and give breastfeeding again for about three days, as this drug has the potential to be unsafe for the infant if excreted through breast milk, so it is recommended not to apply it. If it is applied, it is best to stop breastfeeding. This drug is often used clinically for the corresponding treatment of various colds, fevers or muscle pain, headaches, joint pain, etc. If the patient has certain uncomfortable symptoms, he or she should go to the hospital to give treatment in a timely manner and administer the drug under the guidance of a doctor and explain that he or she is breastfeeding, so that the drug will be safer and will not have an effect on breastfeeding.