The present invention relates to the use of cystamine analogues for the treatment of Parkinson s disease. The present invention also relates to the use of composition comprising cystamine analogues and cysteine. The present invention relates to a method for modifying the progression of Parkinson s disease comprising administering a therapeutically effective amount of at least one cystamine analogue or a pharmaceutically acceptable salt of a cystamine analogue to a patient in need thereof.
