Dexedrine ( or Dextroamphetamine ) is a stimulant used in the treatment of ADHD. It comes in both long and short acting forms. The short acting tablet comes in 5 mg dosages, and reaches a peak level two hours after administration. The longer acting spansule is available in 5 mg, 10 mg, and 15 mg sizes and reaches a peak blood level eight to 10 hours after administration. This permits once daily dosing with the spansule.
The half life of dexedrine (tablet) is approximately 10 hours, significantly longer than Short Acting Ritalin