after 45 and 90 mg nefopam , 21 of 25 and 20 of 25 patients ( p less than 0.01 ) reported more than 50 % reduction of pain , whereas after 65 mg propoxyphene 18 of 25 ( p less than 0.05 ) and after placebo 11 of 25 reported reduction in pain .
C0033493
propoxyphene
C0030193
pain