it took about a month and a half for it to go away completely, the first 3 weeks were rough, plus iwas waking up at 4:30 each morning so my sleep quality was poor on top of it. Also remember there are lots of natural things to take to counteract the tiredness of AD meds, since some side effects do stay sometimes, also when chemicals are off in the brain, it can make us need more of certain nutrients. Magnesium potassium aspartates seems to work well for a lot of people, or euleuthero works too, its siberian ginseng. Greens powders helop by supplying nutrients, but non of them agree with my stomach.