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: Pathology
Warm antibody hemolytic anemia is seen in all expect 
Select and explain. 
A. Stibophen, B. Methyl dopa, C. Penicillin, D. Quinidine
A: Stibophen
Answer: A: Stibophen 
Explanation: Warm antibody type hemolytic anaemia can be induced by drugs.
A small portion of patients receiving methyl dopa develop AIHA .They are tolerance breaking drugs
Penicillin antibiotics develop antibodies agaist RBC , drug complex which induces hemolysis. 
Quinidine forms a complex with plasma protein to which an antibody forms This complex may induce lysis of bystanding RBC or platelets.
Stibophen is an antihelminthic drug which cannot induce AIHA.