This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunomodulator, Subject name: Pharmacology
Drug causing cardiomyopathy - 
Select and explain. 
A. Chloroquine, B. Trastuzumab, C. Methotrexate, D. Pemetrexed
B: Trastuzumab
Answer: B: Trastuzumab 
Explanation: Ans. is 'b' i.e., Trastuzumab o Important drugs causing cardiomyopathy (espcially dilated cardiomyopathy) are:i) Cocaineii) Amphetamineiii) Doxorobicin (Anthracycline)iv) Trastuzumab (Herceptin)