Just a little heads up for anyone not aware....This goes for Canada for sure, and possibly still the Czech Republic, but i'm not too sure about elsewhere. If you are a user of amino acid supplements such as tryptophan, piracetam, phenylalanine, and the lot; then if you don't already know, I'll fill you in on something not many people realize. That being most of these can be obtained through a doctors perscription. Big deal.. what are some advantages you ask? - Most of the supplements can be obtained in larger doses (ie./ Tryptophan in 500 or 1000 and even oddly even 1500mg) -When perscribed, they are significantly cheaper than getting them from a Health food store. -Extended medical will pick up the tab for these puppies in Canada, but only if it's doctor prescribed.