Dr. Gevirtz is Clinical Associate Professor, Department of Anesthesiology, Louisiana State University-New Orleans, LA, and Medical Director, Somnia Pain Management, 627 West Street, Harrison, NY 10528; E-mail: [email protected].

Dr. Gevirtz has disclosed that he has no significant relationships with or financial interests in any commercial organizations pertaining to this educational activity.

Dr. Gevirtz also has disclosed that the use of clonidine for patient-controlled analgesia as discussed in this article has not been approved by the U.S. Food and Drug Administration.