One of the other reasons not to give it out freely is that it varies wildly in effect depending on who exactly takes it. I certainly don't lose my marbles when

One of the other reasons not to give it out freely is that it varies wildly in effect depending on who exactly takes it. I certainly don't lose my marbles when I'm on it, but plenty of people have lost their sanity from it, sometimes for months, years or even life. Not to mention HPPD can sometimes appear, ranging from just "weird" all the way to distressing or madness-inducing.