Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy of Nonopioid Analgesics on Pain following Arthroscopic Knee Surgery

Table 1

Patient groups (30 in each group) and treatment with normal saline (NS) and/or drug.

Group treatment	15 min prior to extubation	8 h postop.	12 h postop.	16 h postop.	24 h postop.
Placebo	NS	NS	NS	NS	NS
Parecoxib	40 mg	NS	40 mg	NS	NS
Metamizole	1 g	1 g	NS	1 g	NS
Paracetamol	1 g	1 g	NS	1 g	NS