“…A previous study reported that oral ketoprofen, a nonselective NSAID, was too short-acting for overnight pain relief after tonsillectomy [20]. A single oral premedication with rofecoxib, a COX-2 inhibitor, was more effective than two intramuscular ketoprofen doses (before surgery and after 12 hrs) in decreasing postoperative pain and opioid rescue analgesic consumption after tonsillectomy [21]. A single preoperative dose of IV flurbiprofen, another nonselective NSAID, relieved immediate postoperative pain after tonsillectomy, but its effects were limited to a few hours [22].…”