9. Subjects taking the following medications; anticonvulsants, sedatives (including benzodiazepines) corticosteroids (by any means of administration), nonsteroidal anti-inflammatory drugs (NSAIDS) within 24 hours of study drug dosing, morphine, monoamine oxidase inhibitors (MAOIs), tricyclic antidepressants (TCAs), neuroleptics, or serotonin-norepinephrine reuptake inhibitors (SNRIs). Gabapentin and pregabalin are not permitted