Hos de patienter, hvor en neurologisk vurdering var mulig i det tidsmæssige forløb (hos 96 af de 171 patienter, der havde neurologiske symptomer forud for administration af hydroxocobalamin), var der hos 51 (53%) af patienterne, der fik hydroxocobalamin, en forbedring eller fuldstændig restitution af de neurologiske symptomer.
Where neurological assessment over time was possible, (96 patients of the 171 patients who presented with neurological symptoms prior to hydroxocobalamin administration), 51 (53%) patients receiving hydroxocobalamin showed improvement or a complete restoration.