Changes in prescribing will be compared in prescribers from specialties whose prescribing is hypothesized to be relatively unaffected by the REMS (such as oncologists and hospice providers) versus those for whom the REMS could have greater impact on prescribing (e.g., dentists). Trends and changes in monthly prescription volume and average monthly prescription volume will be evaluated by prescriber specialty.
Inclusion Criteria:
Exclusion Criteria: