Anticonvulsants are added to multimodal pain treatment plans to improve postoperative analgesia and prevent persistent neuropathic postsurgical pain; for example, following thoracotomy, mastectomy, hernia repair, limb amputation, abdominal hysterectomy, and cholecystectomy (Brogly et al., 2008; Buvanendran et al., 2010; Ho, Gan, & Habib, 2006; Pasero, 2011; Tiippana, Hamunen, Kontinen, & Kalso, 2007). In addition, as part of a multimodal treatment plan, anticonvulsants can reduce opioid and nonopioid dose requirements and related adverse effects (Azer, Abdelhalim, & Elsayed, 2006; Gilron, 2006; Hurley, Cohen, Williams, Rowlingson, & Wu, 2006; Murcia Sanchez, Orts Castro, Perez Doblado, & Perez-Cerda, 2006; Peng, Wijeysundera, & Li, 2007; Seib & Paul, 2006).