"i have been taking lisdexamfetamine since end of may 2013 but for weight loss. i noticed during a 10 day period i had to go off of lisdexamfetamine how much it helped me focus and function. i completed daily tasks and projects i even went back to finish college. i learned through this that i have adhd i never knew this before. i knew of learning disabilities and vision problems from grade school no one ever tested or diagnosed me with adhd/add until now and i am mid 40&#039;s basically started life over again now. i have noticed that i do feel the medication wearing off starting about 2-3pm but more of the energy part of medication i seem to still be able to focus most days. i started a vitamin supplements in the afternoons now."