Generic Intuniv?
ByAlthough Intuniv is quite new, Shire Pharmaceuticals has had to continually fight to keep its patent protected for this new medicine.
Shire has had recent lawsuits against: Actavis and Teva. Now, they are fighting Anchen to protect their medicine.
For now, Intuniv is safe. The report above suggests that the Shire patent on Intuniv only goes until September 2, 2012. This seems like quite a short time.
I will update this post as soon as there are any future developments.
Best,
Dr. Kenny


I am very interested in this information, as it helps to add to reasons why some meds, don’t work as well. We had a radio host put down any suggestion that there was an a.d.h.d. problem. He was so adamant about it that many people may be afraid to see a Doctor. He is on C.F.R.B. in Toronto. This stemmed from an article in the Star Paper, where there was an article where a woman was suing the Board Of Education to get help for her son who only reads at a grade 4 level and is 13 and in grade nine as they keep promoting kids. I hope she succeeds. I wish this guy could debate you and be put straight. Our boy is becoming more aggressive as the medication stops helping him and wears off. There is a long wait for appointments too. His teacher says that he may end up doing crime or being in worse trouble as he gets older. He has been suspended once lately. Keep up the good work. Thanks Nora
Hi Dr. Handelman,
I noticed that both intuniv (guanfacine) and clonidine are alpha-2 agonists (though guanfacine is seemingly more selective for alpha-2a receptors). In contrast, mirtazapine is, among other things, an alpha-2 antagonist. At the risk of oversimplifying, does this mean that mirtazapine could exacerbate ADHD symptoms?
I take mirtazapine along with vyvanse. I like the fact that the mirtazapine stimulates my appetite– but if it is interfering with my adhd treatment then it has to go. I’ve never read anything about mirtazapine being contraindicated for patients with ADHD, but unless it affects alpha-2 receptors in a different region of the brain than those affected by guanfacine and clonidine, it seems sensible to believe there might be an issue.
Thanks!