This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vestibulobullous disorders, Subject name: Dental
Drug induced pemphigus is most commonly caused by 
Select and explain. 
A. Penicillamine, B. Phenytoin sodium, C. Carbamazepine, D. Penicillin
A: Penicillamine
Answer: A: Penicillamine 
Explanation: captopril and d- penicillamine are the two most common drugs inducing pemphigus vulgaris . page no.281 . Reference IADVL's concise textbook of dermatology