"i have an appointment in a week to get adhd and bipolar meds but i was given a sample of a 70mg vyvanse i had previously been trying to  do the dishes for about two hours (procrastination) i could feel it kick in after 2 hours and i ended up cleaning every inch of the kitchen. cleaned the walls cabinets and all the appliances. i was actually interested in cleaning and was able to keep cleaning for 10 hours without getting off track. the effects only lasted about 10 hours and i could tell when it was ending because my cravings for cigarettes started again. i only smoked about 2 cigarettes in that period. i binge eat if i don&#039;t smoke regularly so its great for quitting smoking along with focus for adhd. will be asking about this one."