This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Adverse Drug Effect, Subject name: Pharmacology
Pneumopathy is a side effect of all EXCEPT: 
Select and explain. 
A. Alpha methyldopa, B. Busulphan, C. Melphalan, D. Nitrofurantoin
A: Alpha methyldopa
Answer: A: Alpha methyldopa 
Explanation: Ans. is 'a' Alpha Methyldopa Alpha methyl dopa has no adverse effect on lung.Its adverse effects are :Hepatotoxicity*Coomb's positive hemolytic anaemia*Thrombocytopenia*Lupus syndrome (rarely) *Rest of the drugs given in the choice can cause pneumopathy. All of them produce pulmonary infiltrates in the lung