Doctors Lounge -- In women with HIV-1 who have taken peripartum single-dose nevirapine, the use of ritonavir-boosted lopinavir with tenofovir-emtricitabine is associated with better outcomes than therapy featuring nevirapine, and in children with prior nevirapine exposure, benefits are seen with zidovudine and lamivudine plus ritonavir-boosted lopinavir, according to two studies published in the Oct. 14 issue of The New England Journal of Medicine.