In the present study, the total mean daily dose of lithium was 906 mg. However, information on the corresponding serum levels was not provided. In general, lithium blood levels should be maintained as low as possible and based on the personal history of the patient. Furthermore, and particularly during pregnancy, it might be useful to use twice-per-day dosing to avoid the higher peak lithium levels that result from once-daily dosing. The 2007 National Institute for Health and Care Excellence guidelines advise clinicians to monitor lithium levels monthly from the 20th week of gestation and then weekly beginning 4 weeks before delivery. There is no need to discontinue lithium in late pregnancy or during delivery, as long as the serum levels are within the therapeutic interval. Acute lithium toxicity of the neonate has been described in several case reports and observational studies. Therefore, pediatricians should carefully monitor babies during the first 48 hours for fetal goiter, hypotonia, bradycardia, arrhythmias, systolic murmur, hypothermia, cyanosis, tachypnea, and poor suck reflex, together known as “floppy baby syndrome” (14). Importantly, in all reports the infants recovered fully (5, 11).