The instant invention describes pharmaceutical compositions and dosing regimens comprising seviteronel and/or dexamethasone, and methods of treating diseases, disorders or symptoms thereof.本發明描述包含西維諾尼(seviteronel)及/或地塞米松(dexametha- sone)之醫藥組合物及給藥方案,以及治療疾病、病症或其症狀之方法。