G6PD and G6PD deficiency: In a 1976 report, in which several drugs were tested for haemolytic effects in G6PD-deficient individuals from southern China, NF was shown to shorten RBC survival (assessed by the half-life of 51Cr-labelled RBCs) from 19–28 days before drug administration to 4–14 days in three individuals with Canton, B(−)Chinese and one untyped G6PD deficiency variants, respectively.26 Details on NF dose and duration were not provided.