Khalili 2017b.

Methods	Randomized, double‐blinded, controlled trial (published in Persian). The aim of this study was to evaluate the effect of IV lidocaine in comparison to intraperitoneal lidocaine on postsurgical pain in laparoscopic cholecystectomy. The study was conducted in Iran between 2013 and 2014. Trial identifier: N/A
Participants	Sample size: 96 (3 groups, n = 21, respectively) Only two groups are of interest for this review. Inclusion criteria Patients with ASA I and II considered to undergo laparoscopic cholecystectomy Exclusion criteria N/A
Interventions	Experimental group (21 patients) IV lidocaine Control group (21 patients) IV normal saline
Outcomes	Pain, pethidine consumption
Notes	Small trial sample size (< 200 patients) Anaesthesia N/A Funding N/A Notes Only abstract available