SI and hyperinsulinemic hypoglycemia, familial, 4: A purified formulation of the saccharomyces cerevisiae-derived invertase, sacrosidase (Sucraid®), was shown to be beneficial in patients with congenital sucrase-isomaltase deficiency – a condition where patients experience GI symptoms that are analogous to those observed in miglustat-treated patients [24, 25] – and was also successful in alleviating diarrhea in a pediatric NP-C patient (Marquardt T, personal communication).