Den anden virkning af stiripentol er hovedsageligt baseret på metabolisk hæmning af adskillige isoenzymer, især CYP450 3A4 og 2C19, der er involveret i levermetabolismen af andre antiepileptika.
The second effect of stiripentol is mainly based on metabolic inhibition of several isoenzymes, in particular CYP450 3A4 and 2C19, involved in the hepatic metabolism of other anti-epileptic drugs.