15 Hovedmetabolitten M8 (tert- butyl hydroxynelfinavir) har in vitro antiviral aktivitet, som er lig moderstoffet, og dets dannelse er katalyseret af det polymorfe cytochrom CYP2C19.
The major oxidative metabolite, M8 (tert-butyl hydroxy nelfinavir), has in vitro antiviral activity equal to the parent drug and its formation is catalysed by the polymorphic cytochrome CYP2C19.