Provided are methods for the treatment of classic Fabry disease in a patient. Certain methods comprise administering to the patient about 123 mg free base equivalent of migalastat for reducing kidney globotriaosylceramide, stabilizing renal function, reducing left ventricular mass, reducing plasma globotriaosylsphingosine and/or treating gastrointestinal symptoms.本發明提供了用於在患者中治療經典型Fabry氏病之方法。某些方法包括給予該患者約123 mg游離鹼當量的米加司他,用於降低腎球形三醯神經醯胺、穩定腎功能、降低左心室質量、降低血漿球形三醯鞘胺醇和/或治療胃腸道症狀。