The benefit of breast-feeding has been established, and it has recently been strongly encouraged internationally. However, new mothers have more risks of developing psychiatric symptoms than in any other period of their life, and some of them require psychopharmacotherapy. There are some clinical dilemmas regarding the benefit of such therapy and possible adverse effects on infants when mothers want to breast-feed their infants.
 Most drugs are transferred to breast-milk and, eventually, low levels of maternal daily doses can be taken by breast-fed infants. Having considered this issue and based on several studies, the authors of studies report that breast-feeding can be carried out by mothers who take psychotropic drugs.
 More research data accumulation, including individual case observations and follow-ups, is necessary to guarantee the safety of breast-feeding by a mother on medication; however, in the current clinical setting, decision-making is essential to plan treatment. Such mothers are allowed to breast-feed infants who can be monitored by pediatricians. The critical matter is that clinicians should not hesitate to prescribe optimal doses to mothers for effective treatment.
 <Author's abstract>