Randomized Controlled Trial

Comparison of nefopam and pethidine in postoperative pain.

Br J Anaesth. 1977 Nov 1; 49 (11): 1133-8.
Clinical Trial

Analgesic efficacy of paracetamol/codeine and paracetamol/dextropropoxyphene in pain after episiotomy and ruptures in connection with childbirth.

J. Int. Med. Res. 1987 Mar 1; 15 (2): 89-95.
Randomized Controlled Trial

Analgesic efficacy and safety of nefopam vs. propacetamol following hepatic resection.

Anaesthesia. 2001 Jun 1;56(6):520-5.