a patient with portal-systemic encephalopathy refractory to standard therapy ( 40-g protein diet , oral neomycin and lactulose , supplementation of diet with branched chain amino acids ) following extensive liver resection and construction of a portacaval shunt was treated with 25 mg of flumazenil twice daily by mouth .
C0019151
portal-systemic encephalopathy
C0022957
lactulose