What is the half-life of this stuff, and are there active metabolites? 3alarm, it could have been downstream effects or a buildup effect instead of a bunch of synergistic compounds together. I don't know too much about this and I'm just throwing that out there, for what its worth. I bought a little of this RLP-47-53-1 and I've got memory problems of my own, but want to wait a while before I try it out of caution.
Interesting thought actually. I'm not sure exactly. Hansl's paper did indeed mention active metabolites, I believe one of them was hydroxylated.
NOTE ADDED IN PROOF
Following completion of this study it was found that the particular lot of PRL-8-53 that had been used contained a small amount of the desmethyl compound as admixture, which may also have contributed to the observed effects. However, since this compound is considered a metabolite of the parent compound (8-53), its presence should not detract from the findings