"i&#039;ve been taking 20mg of focalin xr for the past 2 years and have experienced great improvement in mental function and all around health. focalin has allowed me to focus and be aware of a situation. i have been more efficient at work, more aware of my health and wellbeing, and able to process situations more appropriately. my biggest complaint has been with sleep patterns. some nights i can sleep 6 hours or i can sleep for 14 and i can not fall asleep right away. my fitbit has mixed reports, but they are questionable. this is something i have tried to &quot;tweak&quot; with my doctor, but we have not had any success. my second complaint is nausea, but that we have been able to tweak with food consumption and timing."