OLAV SPIGSET, M.D., Ph.D., WENCHE RØDSETH BREDE, B.Sc. and KOLBJØRN ZAHLSEN, M.Sc.
Am J Psychiatry 164:348, February 2007
To the Editor: It is unknown to which extent methylphenidate is transferred to breast milk. We therefore present a case of a lactating woman from whom the levels of methylphenidate were measured in serum and breast milk.