“…A highly statistically and clinically significant effect, clearly superior to that of placebo, was demon strated. Our 50% reduction in frequency of new colic episodes can only be compared indirectly with other trials, as they have been carried out with indomethacin administered orally and/or in suppository [7,8] or have been performed following extracorporeal shockwave li thotripsy (ESWL) [12], In the placebo-controlled study of indomethacin by Grenabo and Holmlund [7] only the number of severe recurrences of renal colic requiring readmission to a hospital were reported, with 6 attacks in 37 indomethacin-treated patients and 29 attacks in 41 placebo-treated patients. In one other study with indo methacin versus placebo after ESWL, the effect has been evaluated in terms of reduced need for additional analgesic treatment [3], The results are in accordance with or superior to the reduced need for rescue medica tion as found in our study.…”