adhd
"Very smooth stimulant. Effective for a little over 8 hours in my experience, not the 12 or 13 hours the manufacturer claims. I take 40mg and have for over a month and have no need to up the dose. I gave it 9/10 instead of 10/10 because it takes 2 to 3 hours to start working. But there is no crash and is incredibly smooth compared to IR Adderall, Focalin or Ritalin. I also have an prescription for 10mg IR Adderall to take at 5pm so after work I can study or work out or just be productive because by 5pm the Vyvanse has totally worn off."