Vasculitis: 2 mg/kg PO daily OR 15mg/kg IV q2 weeks x3 then q3 weeks. Adjust dose to avoid severe leukopenia
Lupus nephritis: 1g/m(2) IV monthly
Neuropsychiatric lupus:  0.75 g/m(2) IV q1mo x 1 year, then q3mo x 3 years
Oncologic uses: Typically much higher doses (e.g. 40 to 50 mg/kg IV over several days)
Cyclophosphamide
Cyclosporine
Rituximab
Methotrexate
Mycophenolate mofetil
Azathioprine
Tacrolimus
Interferon-α