I found this on the internet:
Dextroamphetamine (Dexedrine®) yet
another stimulant with a slight difference from Ritalin. Dexedrine
works to maintain the level of dopamine present in your brain, while
increasing it's level. It's available as 5 milligram/teaspoon elixer or
a 5
milligram tablet. Their duration both are 4-6 hours. Also available are
spansules in 5, 10, or 15 milligram strengths with a duration of 8-12
hours. Dosage may range from 5-40 milligrams per day. Side-effects
are similar to Ritalin's but may be more pronounced in children. There
is also a greater risk of potential abuse. Copyright ©1997, Clinical
Tools.
at http://www2.uwindsor.ca/~collinj/dex.htm
