In an observer-blind, randomised study, the efficacy and tolerability of two topical NSAID preparations were assessed in 384 patients with acute soft tissue injuries. The patients were allocated to receive treatment with either diclofenac gel (Voltarol Emulgel) 4 g tds or felbinac gel (Traxam) 4 g tds for three or seven days, depending on the rate of recovery. In every parameter studied (pain at rest, pain on movement, pain on local pressure, swelling, range of movement, bruising, degree of recovery, requirement for rescue analgesics, daily pain levels), diclofenac was found to be more effective at day 3 and day 7, with the single exception of bruising at day 7. Treatment differences were statistically significant in favour of diclofenac for pain at rest (p = 0.03) and bruising on day 3 (p = 0.03), and pain on pressure at day 7 (p = 0.009). The difference in favour of diclofenac in reduction of daily pain level (as recorded on diary cards) did not quite reach significance (p = 0.06). Both preparations were well tolerated, with no significant treatment-related side-effects reported.