Participants
allergy, pain, psychiatric, abnormal liver or renal function, cancer colon
ALLERGY, DISORDERS, CANCER COLONS
The inclusion criteria were: adult patients with ASA I-III, aged 18–65 years and, scheduled for laparoscopic colorectal surgery for cancer colon. The exclusion criteria were: Patients that have an allergy to the study drug, abnormal liver or renal function tests, a chronic opioid user (> 3 months), being on gabapentin or pregabalin (> 3 months), antidepressant drugs, patients with psychiatric disorders, pregnant females, unable to express their pain or patient refusal.