Adderall Addiction

I Have A Friend Who Recently Confided In Me About Her Adderall Addiction That She Is Overcoming. She Has Taken And Abused Adderall For 5 And A Half Years B/c She Was Prescribed It For Add, And Recently Switched To Concerta B/c She Relized She Was Having Such A Problem With The Drug. The Most Dosage Of Adderall She Had Taken Was 10 Mg And The Last Mg She Took Was 7 1/2. She Now Takes 27 Mg Of Concerta Which Is The Second Lowest Dose You Can Take. She Says This Is Her Last Prescription She Will Take B.c She Doesn't Want To Have Health Problems Any Time Soon. Will She Be Able To Fight The Urge To Take Drugs And If She Stays Off These Add Meds Will Her Body Heal Itself From The Abuse?
She Does Have A Job And Is About To Grad From College To Be An Educator. She Leads A Very "normal" Life.