Zuclopenthixol is a neuroleptic drug. There is 2 studies on it. Half live : 12-29 h Boud to plasmatic proteins : 98% For the studies, given to mothers various doses (single dose of 4 to 72 mg, and 14 to 24 mg/day for 4 days). Level in breast milk was 1,2 to 44 µg/l ; ratio M/P was 0,12 to 2,2. Baby received max of 11,3 µg/kg/day via breast milk. No iatrogenic problem. Conclusion of the authors : zuclopenthixol pass in very small quantity in breast milk. For chronical use, watch to the baby. Hope this help Francoise Railhet LLL France Medical Associates Program [log in to unmask]