Ok first off, I dont actually have ADHD, but the Aderall really helps when it comes to exam times. Yes..I know what you guys are saying, I shouldnt be taking medication that isnt presscribed for me. Neways, after taking it I find that I can concentrate for a long time. My sympathetic nervous system goes into overdrive, and my hands feel sweaty and warm. Mouth feels dry (cos saliva activity is parasympathetic, as is most GI functions) Neways what I noticed that my penis normally is 3" soft, but on taking this after about 6 hrs my penis is 1/2 inch. It really becomes shrivelled. My concern was how long it would take before it goes back to normal, because seeing it that small is really freaky. I drink plenty of water to increase my plasma volume in the hope that some would be diverted to the genitals. Anyone else have any expericnce on this?