- Diagnosis of PHN with pain present for at least three months after the healing of a
Herpes Zoster skin lesion.
- Subjects must have completed the Daily Pain Rating Scale in the electronic diary at
least 4 times during screening and have an average daily pain rating score of greater
than or equl to 4 during the 7 +/- 3 days prior to randomization (Visit 2).
- History of neurolytic or neurosurgical therapy for PHN.
- Presence of any severe pain associated with conditions other than PHN that may
confound the assessment or self-evaluation of the pain due to PHN.