*8.2.3 Azathioprine (AZA)*

Azathioprine is especially used in SLE patients with hematological manifestations, but it can also be used in LN, as a maintenance drug [60]. This drug is compatible with pregnancy, since fetal liver lacks the enzyme to convert AZA to its active form [61]. Therefore, AZA is considered a safe drug, but doses should not exceed 2 mg/Kg/day.
