['diabetes']
['sodium nitrite', 'placebo']

        Inclusion Criteria:

          -  Female subjects must be post-menopausal, sterilized or using suitable birth control

          -  Diagnosis of diabetes (HbA1c > 6.0)

          -  Diagnosis of diabetic peripheral neuropathy pain in feet

          -  Presence of ongoing diabetic neuropathic for at least 3 months

          -  A pain score of greater than or equal to 4 on the Numerical Pain Rating Scale at
             screening

          -  Ability to provide written informed consent

        Exclusion Criteria:

          -  Patients with fibromyalgia or regional pain caused by lumbar or cervical compression

          -  History or diagnosis of significant neurological disease

          -  History and diagnosis of clinically significant psychiatric diseases

          -  Serious liver disease

          -  Poorly controlled diabetes

          -  Hypersensitivity to sodium nitrite or related compounds

          -  Life expectancy < 6 months

          -  A chronic illness that may increase the risks associated with this study

          -  Active malignancy requiring active anti-neoplastic therapy that will, in the opinion
             of the investigator, interfere with study treatment or participation

          -  Pregnant or nursing women

          -  Current diagnosis of alcohol or other substance abuse

          -  Current use of sildenafil or other phosphodiesterase Type 5 Inhibitors

          -  History of methemoglobinemia, (met-Hb ≥ 15%)

          -  Subject is involved in litigation or receives worker's compensation

          -  Inability to speak English
      