N-(2-propylpentanoyl)urea or valproyl urea (VPU), (Fig.!) is a valproic acid analogue which has been reported inิvarious animal models, to possess a higher anticonvulsant activity in parallel with a greater relative margin of safety while offering less unwanted effect than its parent
compound, valproic acid or VPA1
• No effect of VPU and VP A has been observed on total cytochrome P450 or CYP!Al 1A2 or 2El activities of rats. However,' VPU has been found to significantly increase CYP 2B 1 and 2B2 activities'