in an epileptic boy undergoing long-term treatment with valproic acid ( vpa ) , 1.3 g/d , cbmzp , 0.9 g/d and folic acid , 7.5 mg/d , decreased activities of ala-d and uro-s coincided with increased levels of erythrocyte protoporphyrin ( ep ) in the absence of pb poisoning , iron depletion and erythropoietic protoporphyria .
C0014544
epileptic
C0042291
valproic acid