Effect of Low-dose Pregabalin Retard (82.5 mg) Versus Standard-dose Pregabalin Retard (165 mg) on Postoperative Pain and Opioid Consumption After Elective Laparoscopic Abdominal Surgery

Inclusion Criteria: * Age 18-75 years * ASA physical status I-III * Scheduled for elective laparoscopic abdominal surgery under general anesthesia (e.g. laparoscopic cholecystectomy, appendectomy, diagnostic/therapeutic laparoscopic procedures without expected conversion to open surgery) * Ability to understand the NRS pain scale and the study procedures * Written informed consent obtained Exclusion Criteria: * Known allergy or intolerance to pregabalin, gabapentinoids, or study medications * Chronic opioid use (daily use \>30 mg oral morphine equivalent for \>2 weeks preoperatively) * Regular use of gabapentin or pregabalin within 30 days * Severe renal impairment (eGFR \< 30 mL/min/1.73 m²) or on dialysis * Severe hepatic impairment (Child-Pugh C) * Uncontrolled epilepsy or other major neurological disorder * Severe psychiatric disease, alcohol or substance abuse * Pregnancy or breastfeeding * Planned postoperative ICU admission for reasons other than routine overnight monitoring * Conversion to open abdominal surgery (these patients will be analyzed in sensitivity or excluded, predefined in analysis plan)