The invention provides methods, compositions, and medical kits for treating and preventing multiple sclerosis using 1-(4-(((6-amino-5-(4-phenoxyphenyl)pyrimidin-4-yl)amino)methyl)piperidin-1-yl)prop-2-en-1-one or a pharmaceutically acceptable salt thereof according to preferred dosing regimens.本發明提供根據較佳之給藥方案利用1-(4-(((6-胺基-5-(4-苯氧基苯基)嘧啶-4-基)胺基)甲基)哌啶-1-基)丙-2-烯-1-酮或其醫藥學上可接受之鹽來治療及預防多發性硬化症的方法、組合物及醫藥套組。
