Muscarinic Receptor Antagonists as a Therapy for Diabetic Neuropathy

Topical Gelnique 3%TM (3% oxybutynin) applied daily for 20 weeks in type 2 diabetic subjects with established peripheral neuropathy. Subjects will be randomized into placebo or active drug arms and instructed in how to apply 84 mg Gelnique 3%TM or hydrogel placebo to cover a 2 by 2 region of skin adjacent to the initial biopsy site. Treatment will continue daily for 20 weeks, with monthly phone calls to monitor compliance.

Non-active placebo for 3% oxybutynin