thanks for the answer, I believe this Production section on wikipedia is new or I always missed it the countless time I visit that page.

 I'd like to add some precision about my question. First, when I put (Adderall) in parenthesis, I was mistaken and I should have written (Desoxyn)

 Now about my question: I'm not looking for any kind of recipe or any way of producing it has it is not my intention. What I'd like to know, is a bit more about the "official" way of producing it in the "real" laboratories. The reason behind this is because I believe that one, not all, but one of the factor that makes this drugs such an health problem is directly related to his production.  Not the drug it self.

 So, not only the production is creating a lot of garbage and is creating a risk for the neighborhood. but all those acids and off the counter product probably alter the drug and makes it even more toxic. 

 What I would like to know is if it is possible to prove that the methamphetamine in Dexosyn pills is "healthier" (not healthy, but better) than street drugs.