Dr Agell rightly points out that seven of the nursing women in our study were taking paroxetine and sertraline at doses lower than are usually recommended for the treatment of major depression. We disagree, however, with his conclusion that these mother—infant pairs were not valid subjects for the study. These women are representative of many new mothers who choose to take the lowest dosage of medication that will benefit them for the duration of their nursing. Further, we considered the range of subjects' doses in our correlation analyses of the relationship between maternal dosage of anti-depressant and infant serum concentration of medication. In fact, one of the primary goals of our study was to identify the dosage of medication that was likely to produce a detectable level of medication in the infants.
Dr Agell also points out that fluvoxamine cannot be deemed safe in the same manner as paroxetine and sertraline, given the smaller number of fluvoxamine exposures. We agree with this observation and recommend that, whenever possible, nursing women be prescribed antidepressants for which the most extensive safety data are available.
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