Adderal is highly, highly addictive, in the sense that it is very tough to stop. The medicos claim that "addiction" only means that you "crave" the drug, so in spite of it being so very, very hard to quit, they claim it is not "addictive."
My best advice is to go slow in getting off it, and any other psychiatric drug.
There is a book, "Your Drug May Be Your Problem," that I'm told gives detailed directions for quitting these drugs.
In addition, I would recommend B VITAMINS--the drugs rob the body of B Vitamins. If you can find one with SMALL doses of Niacin (not Niacinamide), it will help the body to clear out the drug residuals. Niacin can cause major detox reactions, so go very slow with that one!!!
For a more natural thing than pills, you can try Brewer's Yeast, which has a good mix of B Vitamins and protein also. Tastes pretty bad until you get used to it. As with any supplement, go slow! My husband gets a bad allergic reaction to Brewer's Yeast (genetic) yet has no problems with B Complex tablets, so I know that some people can have problems with it.