> IIRC, neither cocaine or caffeine or amphetamines, they are stimulants, but do not fall under the amphetamine class. :) I could be wrong.

I was speaking in regards to cocaine, obviously caffeine isn't one, but you're right... that was a total misnomer on my part as the Functional group or R-group is completely wrong classification. I'm not sure why I called it that upon review and it seems my lessons from Organic Chemistry are fading these days.

Thanks for that correction.