I usually take generic form of Adderal, called ampheta s/combo , and the past few months the pharmacy has given me amphetam salts . I personally notice a difference, as the amphetam salts make me slightly edgy and jumpy. My prescriber specifically wrote a script for ampheta s/combo or adderal yet the pharmacy gave me amphetam salts, again, and told me it is the exact same thing. My body does not feel the same. please describe the difference of these generic brands. thank you.