<prompt> Drug not used in multiple sclerosisInterferon beta 1aInterferon beta1bGlatiramer acetateMycophenolate  <response>: 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 