Addiction to ADHD meds

M husband was diagnosed about a year ago and was prescribed Adderall for his ADHD.  It really did make a difference, but he has been struggling with the addictive nature of the medicine.  I've found out tonight he has been abusing it for the past months.  Feel like 4 steps forward, 20 backward.  Does anyone else know anything about this and what did you do?  I mean if its a syndrome and helps, is that just a side note that it's addictive?  Help!  I am shocked and really disappointed right now.  Thanks.
 

My husband could only get his

My husband could only get his prescription one month at a time and no more than what was prescribed so I'm not sure how he's able to abuse it, but I would at the very least report this to his doctor. He needs help if he's become addicted to it. With the addictive nature of ADHDers to begin with, this was a HUGE worry for me when my husband took the meds.