I just noticed that Leslie Packer mentions Inositol on her website as well.

http://www.tourettesyndrome.net/ocd_treatment.htm
scroll down to the section where it reads...
SUPPLEMENTS AS ALTERNATIVE TREATMENT FOR OCD

and also this

http://findarticles.com/p/articles/m...n6211958/print
Inositol as a treatment for psychiatric disorders: a scientific evaluation of its clinical effectiveness
Gina L. Nick