This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
Drug not used in multiple sclerosis 
Select and explain. 
A. Interferon beta 1a, B. Interferon beta1b, C. Glatiramer acetate, D. Mycophenolate
D: Mycophenolate
Answer: D: Mycophenolate 
Explanation: *beta interferons act as immune modulators ,given as subcutaneous or I.M route ,help to reduce relapse rate *glatiramer acetate is parentrally administered ,act as competitor antigen ,help to reduce relapse rate of MS. Ref Harrison20th edition pg 2234