The mother’s breastfeeding of her infant should not be interpreted narrowly as providing the infant with food, but also as providing the infant with immune substances that cause the infant to rarely get sick up to the age of 1.5 years, and it would be uneconomical to stop providing the infant with “sure” disease prevention for fear of the “possible” effects of antipsychotics on the infant. Is it not cost effective to stop providing infants with breastfeeding that is “sure” to prevent disease if one is concerned about the “possible” effects of antipsychotics on infants? What effect can antipsychotics have on infants? Usually high potency antipsychotics (e.g., fenadine) may cause increased muscle tone, resulting in difficulty swallowing and frequent milk spills in infants; low potency antipsychotics (e.g., chlorpromazine) may cause infants to think about sleeping, resulting in the infant’s inability to suckle, and the incidence of these two adverse reactions in infants is about 1/10 to 1/20, so how can you give up giving your child this 1/10 to 1/20 non-fatal adverse reaction because of provide immune substances? Our opinion is that mothers taking antipsychotics should nurse their children, especially since the immune substance in colostrum is especially important for the child, and continue to nurse if there is no overflow of milk or if it interferes with the thought of sucking on the breast to sleep. If it occurs, suspend breastfeeding and switch to artificial feeding, and have the doctor evaluate whether there is a possibility of reducing the mother’s medication, and if so, try breastfeeding again after reducing the medication to see if the infant will again have overflowing milk or SiS that affects sucking, and if not, continue breastfeeding. If it does not occur, continue breastfeeding. If it does, suspend breastfeeding and switch to artificial feeding, and let the doctor evaluate whether there is any possibility of further drug reduction; if there is no possibility of further drug reduction, then only artificial feeding will continue. You may say that if you had known this, you would have been better off hand-feeding from the beginning, which would not have caused adverse reactions. Then you lose the opportunity to give your child colostrum, and how can you know you can’t breastfeed if you don’t try? So, will breastfeeding by a mother taking antipsychotics affect the future intelligence of her baby? There is no evidence for this and we default to no. If you don’t breastfeed because of the imagined dangers, are you throwing away the truth because of the fiction? Is there any antipsychotic that you just can’t breastfeed while taking it? Yes, there is, and that is clozapine, because the fear that clozapine will cause granulocyte deficiency in infants, although this is a theoretical fear, the lethality of granulocyte deficiency does scare doctors from letting their patients go to breastfeeding. Mothers taking medication to breastfeed and experiencing adverse reactions (e.g., muscle weakness) in the interim suspect, but cannot be certain, that the antipsychotic being taken is the cause. Since there is a high risk of relapse of the disease from the reduced medication, instead of reducing the amount of antipsychotic medication taken, reduce the number of breastfeeding sessions by half and replace the reduced amount with complementary foods. If the reduction in breastfeeding is not reduced, it is not an antipsychotic. If it does not decrease, it is not due to the antipsychotic, so continue to breastfeed at the full amount and consult a pediatrician to find another cause. If it does decrease, it is due to the antipsychotic, so either reduce the amount of antipsychotic or reduce the number of breastfeeding sessions and replace it with supplements.