ADHD
"I was recently prescribed generic form of Ritalin for Aspergers/lack of focus issues. I am in my low 40s and used Meth recreationally for years, although I gave that up thankfully, a while back.  This is the third pill I have taken and I assure you, the effects of this drug mimic, in many ways, taking a moderate amount of Meth, although not as strong. However, I realize that it affects different people, different ways based on their chemistry. I am not sure I will take it all the time but it does give me energy and new focus, I was lacking. I can see how this drug could be addictive to some people. But it is extremely expensive."