"i have tried a variety of medications for add; including ritalin, adderall, adderall xr, dexedrine, and strattera. each has benefits along with side effects. 

after several years medicating with central nervous system stimulants (cns) i  switched to strattera. i found the medication took a few weeks to take effect, and tended to cause constipation. i also found my psychological state was less effective if i became dehydrated. 

to counter the side effects i added all-bran into my diet twice a week, and drank more liquids. the big benefit for myself was i could enjoy reading books again, which i could not on the cns stimulants."