EXETER, N.H.--(BUSINESS WIRE)--Bentley Pharmaceuticals, Inc. (NYSE: BNT), a specialty pharmaceutical company, today announced completion of treatment in an 80 patient multi-center open label, randomized, parallel group Phase II study in India to determine the safety and efficacy of add-on intranasal insulin spray (Nasulin®) in patients with type 2 diabetes mellitus on oral anti-diabetic therapy. The clinical study report is expected to be completed later this month, but preliminary clinical results are being released today.