Den frie koncentration af efavirenz, der er nødvendig for 90 - 95% hæmning af vildtype - eller zidovudinresistente laboratorieisolater og kliniske isolater in vitro var fra 0, 46 til 6, 8 nM i lymfoblastoide cellelinier, perifere mononukleare blodlegemer (PBMCer) og makrofag - / monocytkulturer.
Antiviral activity: the free concentration of efavirenz required for 90 to 95% inhibition of wild type or zidovudine-resistant laboratory and clinical isolates in vitro ranged from 0.46 to 6.8 nM in lymphoblastoid cell lines, peripheral blood mononuclear cells (PBMCs) and macrophage/ monocyte cultures.