Nyfødte børn, hvis mødre har fået Combivir under graviditeten, kan få mitokondriel dysfunktion (beskadigelse af de energiproducerende cellebestanddele med blodproblemer til følge).
As with all other NRTIs, Combivir may also cause lactic acidosis (a build-up of lactic acid in the body) and, in the babies of mothers taking Combivir during pregnancy, mitochondrial dysfunction (damage to the energy-producing components within cells that can cause problems in the blood).