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Table 1 Inclusion and Exclusion Criteria

From: The effect of Neuragen PN® on Neuropathic pain: A randomized, double blind, placebo controlled clinical trial

Inclusion Criteria Exclusion Criteria
At least 21 years of age. Pregnancy.
Established diagnosis of neuropathic pain for at least the past 3 months, confirmed by primary care physician and/or neurologist. Previous use, continuing use, or other knowledge of Neuragen PN®.
Pain of at least level 3 and no higher than 8 on a 0-10 scale, despite other treatments. Evidence of other types of pain as, or more severe, than the pain under study.
Normal cognitive and communication skills (as judged by investigator) and ability to complete self report questionnaires. Major psychological conditions requiring treatment.
  History of eczema/atopy/anaphylaxis or unusual skin reactions.
  Self reported sensitivity to perfumes, essential oils, or strong odors.
  Changes to current pain management regime within the previous month.