In vitro metaboliseras nelfinavir av flera cytokrom P- 450 isoformer, inklusive CYP3A, CYP2C19/ C9 och CYP2D6. ###>In vitro, multiple cytochrome P-450 isoforms including CYP3A, CYP2C19/C9 and CYP2D6 are responsible for metabolism of nelfinavir.