Effectiveness of analgesics evaluated with the tourniquet technique.

The analgesic effectiveness of acetylsalicyclic acid, noramidopyrinium methane sulfonate sodium, pentazocin and codeine phosphate was studied in 19 healthy male and female subjects between 25 and 65 years of age by means of two variants of the tourniquet technique. Compared with placebo, no differences in effectiveness were found using a double-blind approach; primarily because of the low reliability of the method.