ok here are my experiences. i know that some things are not healthy for sure... but in the past six month i need to work from 10-12 hours a day and once im home im writing on my thesis for another 6-8 hours. just take it as an experience report, and not a reason to argue on healthyness and stuff ;-)

i`ve been into ephedrine for quite some years by now. the bad thing is that its bad for the heart and you need to continuously increase the dose to keep the effect comming. maximum time period for usage is 6 weeks for me. after that the side-effects become really hard (sleeping disorder, you mood changes real quick and i become quite tetchy) off min. 2-4 weeks to get started with small doses again. start on day 1 with 25mg once to twice a day. after app 4 weeks im up to 150mg and thats when its reported to get dangerous.
quite a common stack is ephedrine, coffeine, aspirine for work-outs. for some time i took 50mg ephedrine with 200mg coffeine which longers the effect of the ephedrine. but i dont like this nervousness and stuff from coffeine...

next thing i tried was modafinil (brand vigil in germany, producer cephalon) and that [censored]] really made it for me from day one. super focus at work and still able to concentrate/focus in the evenings. however i dont feel the effects of tiredness that much but the effect is also exhaustible. dosage: 2x100mg/day. the generic modalert is not as good as the original, but still worth considering with the reasonable low-price.

adrafinil is supposed to have a similar effect as modafinil. but it needs to metabolize... some times i dont feel anything. but when i take 150mg adrafinil with 25mg at once, it kicks in within 20-30min.
Dosage 2x150mg/day with 25mg ephedrine each.

Speed Serum Energy Shot, Producer: Peak. i can provide a link of a german website. PM me
It containts green tea, guarana, coffeine, taurine, a lot of different aminos (l-carnetine as well) and some vitamins. it delivers an energy shot and helps against tiredness, focus back again and stuff. that stuff is really good! 20eur for 300mg which lasts for app. 30-35 energy drinks.

Finally the mix of ephedrine, speed serum, adrafinil or modafinil is the ultimate booster for 20hours workdays with only short breaks of 15-30mins for food and a bit rest.

not to mention amphetamines around here. just not the right thing to stay focused, able to sleep and eat.

i took vigil over 10days for testing purposes. once i set it off i felt what i did to my body and brain, needed two days rest, a lot of sleep and food to get back on track. when you take modafinil or the mix of the mentioned substances, force yourself to have breaks! you need still if you dont feel like.

i won't recommend taking the mix over a longer period. im on it for app. 3month now and will set it off next week once im done with my thesis.
modafinil and the speed serum are worth trying! it really increased my performance every day.

Well that is certainly an impressive recitation about your "mix" especially the part about combining modafinil, ephedrine and the speed serum over a several month period.
If you aren't familiar with the erowid.org web site, you should really take a look there.
You'll probably fit right in with their trip report contributors.

Hi acid-

Good luck with your 'smart concoction'.

It is indeed difficult to maintain full-time employment and pursue a graduate degree; therefore, I would recommend that you be sure to submit whatever thesis you are writing to a proofreader or copy editor before your defense.

Best regards!

I tried Piracetam while im the military, as it stated that it was supposed to help your concentration (I was a USAF Counter-Sniper) What I found pleasantly surprised me.

For me it didn't do a thing for my concentration *BUT* I found that it drastically improved my night vision. For me that was reason enough to take it.

I have since stopped using it, but there is one place in the US (maybe more) that I knew of where it was available OTC. I forget the name of the site - I have to fire up my laptop to get the name of the place.

It was rather inexpensive also - much cheaper than the sites thal sell the European Nootropil brand.