This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'ALL of the following drugs have immunosuppressive effects, EXCEPT: \nSelect and explain. \nA. Cyclosporine, B. Cefaclor, C. Azathioprine, D. Steroids', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cefaclor is a second generation cephalosporin and is not known to have any immunosuppressive effects. Coicosteroids is having immunosuppressive propeies. Classification of immunosuppressants according to the WHO: Drugs targeting intracellular ligands: Calcineurin inhibitors Tacrolimus Cyclosporin A Antimetabolites Azathioprine Methotrexate Mycophenolic acid Cladribine Antiproliferative agents Cyclophosphamide Sirolimus Mitoxantrone Drugs targeting cell surface ligands: Monoclonal antibodies Fusion proteins Drugs targeting soluble factors: cytokines: Anti TNF alpha Daclizumab Ref: Immune Regulation and Immunotherapy in Autoimmune Disease By Jingwu Zhang page 297.', 'role': 'assistant'}]