Inclusion Criteria:  Elective Laparoscopic Colorectal Surgery Age 18-75 ASA (American Society of Anesthesiologists) Physical Status Classification 1-3  Exclusion Criteria:  Current use of Buprenorphine/Suboxone or Methadone maintenance treatment Known history of substance abuse Use of intra- and/or postoperative Ketamine or Lidocaine infusion Pre- or postoperative placement of Epidural catheter Inability to speak English or communicate verbally Chronic Kidney Disease (CKD) Stage 3 Hepatic Cirrhosis Neuromuscular disease Heart block on EKG Uncontrolled diabetes with Hba1c > 8% Known allergies to study drugs