In this case the researchers ought to test it too so it could be approved by the FDA together with MDMA because piracetam alone makes HUGE difference. If you are going to take MDMA and can choose only one supplement to use to protect your brain from adverse effects - that is to be piracetam (of course something better may exist but I have never heard of anything better so far). I can't confirm this scientifically but I could bet whoever has tried it (or at least the majority of them) will tell you this is true.
By the way I live in Europe and have been taking piracetam (it is an approved medicine available at every drugstore here, over-the-counter in some countries, on prescription in others) every day (making just occasional pauses for a month or two) during about 15 years already and man it's just so great I don't want to live in a country where I can't get it easily. In my opinion (based on my own long-term systematic experience with it) piracetam is an essential for brain fitness, good quality of life, physical, creative, spiritual, educational and professional self-realization. And I have never had a headache during these years (except slight headakes that I had a couple of times after having drank a way too much alcohol) although I used to have headache almost every day when I was a child and wasn't taking piracetam!
By the way I live in Europe and have been taking piracetam (it is an approved medicine available at every drugstore here, over-the-counter in some countries, on prescription in others) every day (making just occasional pauses for a month or two) during about 15 years already and man it's just so great I don't want to live in a country where I can't get it easily. In my opinion (based on my own long-term systematic experience with it) piracetam is an essential for brain fitness, good quality of life, physical, creative, spiritual, educational and professional self-realization. And I have never had a headache during these years (except slight headakes that I had a couple of times after having drank a way too much alcohol) although I used to have headache almost every day when I was a child and wasn't taking piracetam!