EDIT: In fact, that was linked to here way earlier and here's the discussion:
-1-2mg of melatonin 5 hours before you go to sleep.
-Kava Kava Root. Similar effects to benzos without nearly as impaired concentration. Can chew it, buy or make tea, or buy extract capsules
-Take extra zinc and magnesium at night
As far as I know, buying it online in the US without a prescription, even if it comes from overseas, is illegal. This is not true everywhere though (the UK, for example.)
As others have mentioned your mileage may vary. I used it for about 6 months during crunch development periods or when I felt I needed a bit more focus and it definitely helped me get through those times. I stopped using it because I felt out of touch with my team members when I was on it and I had started to experience a deeply unpleasant metallic taste in my mouth just after taking it.
2,5-dimethoxy-4-iodophenethylamine > 2-DPMP > Modafinil > Adderall
What dosages are you talking about? 2-5mg? 10-25mg?