On the legal side, there is a "dietary supplement" called Zantrex available at Rite Aid/Walgreen's that I believe achieves a similar effect. I definitely wouldn't recommend it. I took ONE pill (I think the bottle advises you to take two every few hours) and it was a very interesting experience. I admit it did wonderful things for my concentration level--I was able to study intently in the library for like 16 hours straight without losing my train of thought. I had a major crash though afterwards & thus had to take another to get through my exam the next day. When I got home that night, I was sweating (dead of winter here), my vision was messed up, & I couldn't speak straight or stand up. My heart was beating so fast I thought I was going to die. I stopped taking it immediately after my exam, but was very sick for a few days after...constantly puking & unable to do really anything.
I am pretty sensitive to medicine and am pretty small, so I admit you might not have such terrible side effects...but...ugh...definit
ely test it out WAY in advance if you're thinking about it. I only took a FRACTION of the recommended dose and it was HORRIBLE. I can't even believe they sell that stuff OTC...even kids could buy it. Ick.
I can see it being helpful for the LSAT, but I'd never do it now that I've seen the side effects...and ALSO...I'd really hate to have that crap combined with massive amounts of normal adrenaline. I think I would die. LOL.