Abstract：
:Tramadol hydrochloride is a synthetic mu-opioid agonist with additional monoaminergic activity. Tramadol's analgesic effect has been equated with that of pethidine, with a more favourable side-effect profile. Tramadol has been the most-selling prescription analgesic in Germany for several years, and it is now available in many other European countries, but still there is a lack of adequately controlled clinical studies of its analgesic properties. The purpose of this study was to compare the analgesic efficacy of 50 and 100 mg oral tramadol with our standard analgesic for postoperative pain treatment, 1000 mg paracetamol + 60 mg codeine, and placebo. A single-dose, parallel group, double-blind design was used. One hundred forty-four patients were enrolled the day after total hip replacement if they had a pain intensity of 60 mm or more on a 0-100 mm visual analogue scale. Treatments were compared on the basis of pain intensity and derived variables (pain intensity difference, and summed pain intensity differences), the need of rescue medication, and a global evaluation. Serum concentrations confirmed rapid and good absorption comparable with that reported in healthy volunteers. The active drug control, paracetamol+codeine, was significantly superior to placebo for all efficacy variable (P = 0.0002-0.004), confirming good assay sensitivity. Paracetamol+codeine was also significantly superior to both 50 mg tramadol (P = 0.002-0.03) and 100 mg tramadol (P = 0.002-0.02). There was no difference between placebo and 50 and 100 mg tramadol for any of the efficacy variables.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Painjournal_title
Painauthors
Stubhaug A,Grimstad J,Breivik Hdoi
10.1016/0304-3959(95)00056-Xsubject
Has Abstractpub_date
1995-07-01 00:00:00pages
111-118issue
1eissn
0304-3959issn
1872-6623pii
00006396-199507000-00013journal_volume
62pub_type
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