Combination proves effective for acute postoperative pain - a meta-analysis of single dose oral tramadol administered in combination with acetaminophen (paracetamol): product news
Abstract piece taking from "McQuay H, Edwards J. Meta-analysis of single dose oral tramadol plus acetaminophen in acute postoperative pain. Eur J Anaesthesiol. 2003;20 Suppl 28:19-22.