"i started taking this medicine about 2 years ago now. i am on the 40 mg dose and at first everything was great, my grades improved, i could focus in public. but now, my loss of appetite is crazy. i&#039;m 13 and i only weigh 82 lbs. i become very short tempered with my friends and i get annoyed at the littlest things. it also brings my mood way down. when i&#039;m on my medicine i feel depressed and anxious constantly. i still get my a&#039;s and b&#039;s in school but i don&#039;t think it&#039;s worth all the side affects."