Hair and plasma data show that lopinavir, ritonavir, and efavirenz all transfer from mother to infant in utero, but only efavirenz transfers via breastfeeding.

Gandhi M, Mwesigwa J, Aweeka F, Plenty A, Charlebois E, Ruel TD, Huang Y, Clark T, Ades V, Natureeba P, Luwedde FA, Achan J, Kamya MR, Havlir DV, Cohan D, Prevention of Malaria and HIV disease in Tororo (PROMOTE) study